The ambient temperature affect the rate of cooling of a body after death occurs depends on the temperature differential between the body and the environment.
How long does it take for the body to cool down after death?Once vital functions cease, the body cools at an average of 1°C to 1.5°C per hour. Considering that the average temperature of a human being is between 36 °C and 37 °C, the corpse reaches the ambient temperature in 24 hours at most.
The higher the ambient temperature, the more important the evaporative heat loss will be. In fact, when ambient temperature is higher than body temperature, the only way to lose heat is through evaporation. Human beings lose heat through sweating.
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If the distance between Earth and the sun were doubled what would be the force of gravity between them
thanks to a novel recessive mutation, a certain plant species has begun to invade colder arctic regions outside of its normal range. however, this cold-tolerant mutation has not yet become fixed in the population. a second mutation arises that promotes self-pollination. do you predict that the self-pollination allele will be selected for in the arctic regions? why or why not?
Plant cell death is the intracellular sequence of activities that ends the life processes of a plant cell. Plant cells can die through necrosis, apoptosis, or autophagy.
What happens to a plant eventually, causing it to die?Senescence describes all of the alterations that occur in a plant and ultimately result in the death of its cells, tissues, and ultimately the entire plant body. Even in extremely young, thriving plants, these alterations can be visible in a few cells.
An embryo and endosperm, both of which are necessary for the growth of a viable seed, are produced in angiosperms as a result of double fertilization. Plants that are diploid create diploid embryos and triploid endosperm.
Why does the photoperiodic route, which many plants utilize, control when flowers form? In this plant, temperature and day duration both affect flowering. Flower formation is being hindered by the warm environment and prolonged exposure to light.
The aberrant transformation of floral components into leafy structures is known as phyllody. Although environmental variables that lead to an imbalance in plant hormones may also be to blame, phytoplasma or virus infections are the usual culprits.
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thyroid hormones are principally concerned with the increase in metabolic rate of tissues that can result in certain effects. what are some of these effects? select all that apply.
Thyroid hormones are principally concerned with the increase in metabolic rate of tissues that can result in certain effects such as:
A) Increased heart rate
C) Increased body temperature
D) Increased cardiac output.
What is a Hormone?This is referred to as a chemical messenger which are produced by different types of glands and they are released directly into the bloodstream for action.
They control metabolic reactions and an example is the thyroid hormone which is located in the front of the neck. It controls growth and has other effects on the body such as increase in temperature and heart rate of the individual.
There is also an increase in the cardiac output due to the different reactions occurring which is therefore the reason why options A, C and D were chosen as the most correct choices.
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The full question is:
A nurse is describing the action of thyroid hormones to a client. The nurse would include information that thyroid hormones are principally concerned with the increase in the metabolic rate of tissues that can result in which of the following? Select all that apply.
A) Increased heart rate
B) Decreased respiratory rate
C) Increased body temperature
D) Increased cardiac output
E) Decreased oxygen consumption
which structures are part of the basal ganglia? a globus pallidus, caudate nucleus, amygdala b caudate nucleus, putamen, fornix c putamen, amygdala, mammillary bodies d globus pallidus, substantia nigra, putamen
The globus pallidus, substantia nigra and putamen are the parts of the basal ganglia.
What is basal ganglia and what are the parts of basal ganglia?Basal ganglia are a group of nuclei responsible for specific functions and roles as other ganglia are.The motor functions are the responsibility of basal ganglia as these are the group of subcortical nuclei.Here in the question is asked the parts of basal ganglia and the answer would be globus pallidus, substantia nigra and putamen.The pallidum is the basal ganglia consisting of two nuclei , and the only basal ganglia consisting of two nuclei.Hence the structures and the parts of basal ganglia are globus pallidus, substantia nigra and putamen.To know more about basal ganglia visit:
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suppose you examine a population of randomly-mating organisms and find that its actual genotype frequencies are not those predicted by hardy-weinberg equilibrium. what conclusion should you draw?
When the five requirements listed below are met, the Hardy Weinberg equilibrium asserts that perhaps the allelic frequency of organisms remains constant from generation to generation.The five conditions are.:
1) Large population size
2) Random mating
3) Sexual reproduction is necessary
4) No migration
5) No evolution (no natural selection)
If any of these five conditions is violated, Hardy Weinberg equilibrium cannot be used to forecast genotype frequencies.
Option-d evolutionhas occurred is the right answer since it violates the Hardy Weinberg equilibrium criteria.
What is Hardy-Weinberg principle?
The Hardy-Weinberg principle, also known as the Hardy-Weinberg equilibrium, model, theorem, or law in population genetics, holds that in the absence of additional evolutionary factors, allele and genotype frequencies in a population would remain constant from generation to generation.
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can someone help me pleaseeeeeeeeeeee
The greatest gravitational force is experienced when;
P = 6.0 * 10^24 KgQ = 625 Kgd = 25000 mWhat is the gravitational force?Let us recall that the gravitational force is the force that acts between any two objects that we find on the earth's surface. The gravitational force is an attractive force. We know that if we have two objects, then one object must effect a gravitational force of attraction on the other. The magnitude of the gravitational force of attraction can be obtained by the use of the formula;
F = Gm1m2/r^2
F = the gravitational force of attraction
G = gravitational constant
m1 and m2 = The masses of each of the objects
r = The distance between the objects that are found in the gravitational filed of the earth.
The larger the masses of the objects and the smaller the distance that the objects have between them, the greater the gravitational force between the objects.
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if the original dna sequence is 3' - gtt tac ctc tcc gac atc - 5' [template strand] 5' - caa atg gag agg ctg tag - 3' [coding/non-template strand] a point mutation occur and change the sequence to 3' - gtt tac atc tcc gac atc - 5' [template strand] 5' - caa atg tag agg ctg tag - 3' [coding/non-template strand] what type of mutation is this?
The given type of mutation is nonsense mutation which results from point mutation.
A nonsense mutation in a DNA sequence causes a premature stop codon, also known as a nonsense codon, in the transcribed mRNA as well as a shortened, ineffective, and typically nonfunctional protein product.
As was mentioned previously, a nonsense mutation happens when a stop codon replaces an amino acid's codon. A shortened and typically nonfunctional protein is the result of this mutation. By altering a tRNA molecule's anticodon sequence such that it recognizes the stop codon instead of the start codon, such a deficiency may be at least partially repressed.
Therefore, the given type of mutation is nonsense mutation which results from point mutation.
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you do a mutant hunt to screen for histidine mutants in a fungus population and isolate 15 mutants. you find that the histidine phenotype is recessive in mutants 1-14, but dominant in mutant 15. you then organize the mutants based on complementation groups (groups that will complement each other) a) describe how you would determine the complementation groups for each mutant. b) explain what it means if two mutants are in the same complementation group as opposed to in different groups
A complementation group is made up of mutants and meaning of same complementation group can be described by an experiment of biosynthetic pathway of histidine.
The complementation test is used to determine whether the mutations are in different genes or the same gene.
a) The biosynthetic pathway of histidine is the subject of our experiment.
Histidine biosynthesis is a series of steps mediated by various enzymes whose codes are encoded by various genes. The next step in the pathway is determined by the product of one gene.
Therefore, mutants with a gene X mutation will be unable to synthesize histidine. Histidine is necessary for the growth of those mutants.
+ refers to prototrophs that can grow in minimal media; - refers to auxotroph that need histidine to grow (MM). When mutant A1 mated with itself, the resulting diploid remains auxotrophic due to its homozygous status for the defective allele.
The prototrophy was restored when mutant A1 and mutant A2 were mated, complementing each other.
The same holds true for the other mutants.
This allows us to determine which his-phenotype is recessive in mutants 1 through 14.
b) If a mutant has a mutation in gene X that codes for an enzyme A and another mutant has a mutation in gene Y that codes for an enzyme B. Since both genes are necessary for the histidine biosynthesis pathway, neither mutant can make histidine on its own. However, when mutations are combined, a mutant with a normal copy of gene X on one chromosome will produce ENZYME A, while a mutant with a mutant copy of ENZYME 2 They are grouped together as the same complementation.
c) Mutants that do not complement one another will also be placed in the same group (group 1): A1, A3, A5 group 2, A2, A4, A6 group 3, A7, A8 group 4, A9, and A10.
This makes a total of four complementation groups.
You do a second mutant hunt to screen for histidine mutants and isolate 15 mutants. You find that the his- phenotype is recessive in mutants 1-14, but dominant in mutant 15. You then organize the mutants based on complementation groups
a) Describe the experiment that you performed and the results that you obtained which allowed you to determine that the his-phenotype is recessive in mutants 1-14, but dominant in mutant 15
b) Describe how you would determine complementation groups for each of your mutants and explain what it means if two mutant are in the same complementation group as opposed to in different complementation groups
c) The following is the result of a complementation assay. Here (-) represent no growth on minimal media and (+) represent growth on minimal media. Based on the information provided, arrange the mutants into complementation groups. A1. A2 A3 A4 A5 A7 A8 A9 A10.
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During the low point in the sun's 11-year cycle, the gravitational field lines up with the poles, resulting in
✓ This often occurs
During that phase of the solar cycle, intense bursts of radiation cause
the sun
Answer: ending in slower time sunspots.
Explanation: ending cycle
Answer: I assume you are looking for the answers to this prompt:
During the low point in the sun’s 11-year cycle, the gravitational field lines up with the poles, resulting in sunspots. At the peak of the solar cycle, more sunspots tend to form. During that phase of the solar cycle, intense bursts of radiation cause solar flares. This often occurs with coronal mass ejections, which are eruptions of huge amounts of plasma from the sun.
Explanation: Solar cycles occur in 11-year sequences where the sun's strength fluctuates based on solar plasma and magnetic field strengths.
Explain why chlorophyll might be limiting factor for some plants...
Answer:
Since photosynthesis cannot begin without light, it is the first limiting factor.
6. Write a chemical equation for cellular respiration.
coman
Label the molecules involved.
Answer:
Carbon dioxide+Water Carbon Hydrogen Oxygen+Oxygen
Explanation:
Its chemical equation isCO2 +H2O C6 H12O6 +6O2
What are the 3 domains of development in psychology
Answer:
physical, cognitive, and psychosocial development.
Explanation:
(20!!!!!)Select the type of inheritance pattern that is best described below:
When graphed, the number of individuals of various heights forms a bell-shaped curve.
a
Pleiotropy
b
Polygenic Inheritance
c
Multiple Alleles
d
Codominance
e
Incomplete Dominance
Answer:
Polygenic Inheritance tend to result in a distribution that resembles a bell-shaped curve, with few at the extremes and most in the middle.
a close look at almost any terrestrial community or ecosystem reveals that it consists of an ever-changing mosaic of patches of vegetation in different stages of .
What is primary productivity?
A. the amount of sunlight that a plant receives
B. the rate at which organic matter is created by
producers
C. the amount of producers in a certain
ecosystem
Gross primary productivity is the total amount of organic matter that producers synthesize in the course of photosynthesis per unit of time and per unit of space (GPP).
In tropical regions, primary productivity is high and consistent throughout the year, but it is constrained by a cold temperature and a short growing season in temperate regions.
The tropics have the most sunlight, whilst the poles have the least. Due to this, net primary production (NPP) is highest in the tropics (>20 t ha 1 year) as opposed to the average (8 t ha 1 year) in temperate forests.
The synthesis of organic compounds from atmospheric or aqueous carbon dioxide is referred to as primary production in ecology.
Water for which productivity is to be assessed is confined in sealed white and dark bottles. Primary productivity can be measured from the amount of oxygen utilized by a volume of water in a defined amount of time (bottle painted dark so light would not enter).
Primary production, the lowest trophic level, provides vital nutrients and energy to higher trophic levels and higher organisms because it is the lowest trophic level.
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which of the following is not true concerning all bacterial plasmids? choose one: a. they may exist in multiple copies in a single cell. b. they may contain antibiotic resistance genes. c. they may be transmitted horizontally from one bacterium to another. d. they are always linear dna.
Option D i.e. they are always linear DNA is not true concerning all bacterial plasmids.
Plasmids are crucial for bacterial evolution and adaptability to the environment because they contain genes that confer advantageous characteristics on the bacterial cell. Plasmids of many sorts can coexist in the same bacterial cell.
In every bacterial cell, plasmids are present by nature. All bacterial cells include plasmids, which are tiny, circular, double-stranded DNA molecules. These plasmids can independently reproduce because they are isolated from chromosomal DNA.
The plasmids contain genes for antibiotic resistance. Virulence Plasmids: The majority of the infection in the host body is caused by plasmids that contain viral genes. Degradative Plasmids: These plasmids include genes that cause the host genome to deteriorate.
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Remembering that proteins are made in cells that are 70% water- and water is polar-
describe how you might imagine that a protein spontaneously folds up into a complex 3D
shape.
Answer:
Hydrophobic packing. Read explanation below.
Explanation:
There are 4 tiers of protein struture. Primary structure is the links of amino acids attached by peptide bonds. The N terminus of one bonds to the C terminus of another.
Secondary structure is the first stage of folding. The amino acid chain can hydrogen bond with itself and can form structures such as Alpha helix and Beta sheet.
Tertiary structure is the interaction between R groups. R is a variable used to denote the presence of some type of compound attached to the basic amino acid structure that makes it chemically unique from the other ones.
Quaterary structure is also between the interaction of R groups, however it is between multiple proteins.
Types of folding that occur in Tertirary and Quaternary structure are the formation of disulfide bonds in an oxidizing enviornment, singularly in the presence of cysteines in a polypeptide. There is also hydrophobic packing, which is when a protein is in an aqueous solution the hydrophobic parts will fold inwards so it is not exposed to the water, and the hydrophillic polar regions will gravitate to the outside.
protein folding spontaneously folds up into a complex 3D shape by Hydrophobic packing.
What is protein folding ?
There are four types of protein structure where the Primary structure of protein is the links of amino acids by forming peptide bonds in which the N terminus of one bonds is present at one end and C terminus at another.
Secondary structure of protein is the first stage of protein folding where the amino acid chain form peptide by forming hydrogen bond with itself and form the structures of Alpha helix and Beta sheet.
Tertiary structure of the protein refers to the interaction between R groups where R is a variable group which is used to denote the presence of compound attached to the basic amino acid
Quaternary structure of the protein is formed between the interaction of R groups between multiple proteins.
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in the light dependent reaction of photosynthesis water is split, releasing high energy particles that pass down a gradient to produce energy in the form of atp. what are these particles called? group of answer choices photons protons electrons
Answer:
photons
Explanation:
protons and electrons are part of chemisty in elements
What does a carbon atom do during photosynthesis?
During photosynthesis, plants capture carbon dioxide from the atmosphere, and water from the soil to carry out this process. What happens with carbon atoms is that they, with the sunlight action, will go to form glucose, whose chemical formula we can see it in the following:
[tex]6\text{ CO}_2\text{ + 6 H}_2\text{O }\rightarrow\text{ C}_6\text{H}_{12}\text{O}_6\text{ + 6 O}_{2\text{ }}[/tex]What those 6 numbers tell us, is that for each 6 carbon dioxide atoms, plus each 6 water molecules, the process will be carried out, producing one glucose molecule, plus 6 oxygen molecules.
This organelle resembles the circulatory system because it carries nutrients to other areas of the cell. What is it?
Answer:
The endoplasmic reticulum
Explanation:
This is because the endoplasmic reticulum is a system of tubes surrounding the nucleus, which allows it to diffuse nutrients within the cytoplasm
which statement about connective tissues is true? which statement about connective tissues is true? the matrix of connective tissue is composed of both a ground substance and a fibrous component all connective tissues are avascular connective tissues are named for their most apical layers neuroglia are cells found within connective tissues
The matrix of connective tissue is composed of both a ground substance and a fibrous component this statement about connective tissues is true.
In addition to holding structures together and providing support for organs and the body as a whole, connective tissues also function to repair damaged tissues, store fat, transport substances, and defend against disease. They exist everywhere over the body. There are four categories of connective tissues: connective tissue proper, blood, bones, cartilage, and connective tissue . because blood transports various materials and gases from one area of the body to another as a result of the heart's pumping function, blood is viewed as a connective tissue. Therefore, it joins many body tissues and organs, earning its name as a connective tissue. The connective tissue that is most broadly spread in an animal's body is called areolar tissue. It is located beneath the skin and acts as a scaffolding for the epithelium.
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Where did life first form?
A. In the atmosphere
B. In volcanoes
C. On land
D. In the oceans
Answer: D. in the oceans.
The ocean is the most likely answer to the question as there wasn't enough oxygen in the atmosphere, the land hadn't formed continents and wasn't mineralized enough. Of course, there are many other theories including one that suggests life started in muddy pools in the land warmed by volcanoes. So there really isn't a fixed answer, but I'm fairly sure it is D.
Which cell type is only located in two layers of the epidermis, the stratum spinosum and the stratum granulosum?.
The cell type which is only located in the two layers of the epidermis include the stratum spinosum. Stratum spinosum include a 8-10 layers of cells.
What is Epidermis layer of skin?Epidermis is the outermost layer of the skin on body. Epidermis protects the body from harm, keeps the body hydrated, produces new skin cells and also contains melanin, which determines the color of the skin. It consists mostly of the keratinocytes, however it also consists of Langerhans cells, melanocytes, and Merkel cells resting on the supporting dermis which contains the nerve and vascular networks, which nourish the epidermis layer of the skin.
Stratum spinosum is made up of 8-10 cell layers, which contains irregular, polyhedral cells through the cytoplasmic processes, sometimes called as spines, which extend outward and contact the neighboring cells by desmosomes. Dendritic cells can be found in this layer of cells.
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which of the following statements among a - d is false? a. an antimicrobial agent exhibiting bacteriostatic activity should always show a decrease in viable count. b. in terms of killing effect, ionizing radiation like gamma rays is generally more effective than non-ionizing radiation such as uv light. c. implementing cold temperatures for food preservation has a bacteriostatic effect rather than a bacteriocidal effect. d. disinfection is not a sterilization process. e. none of a - d is false; all are true
Among the following statements, option e is correct that is all the given statements are true.
In option a, bacteriostatic means a state of preventing the growth of bacteria, thus an antimicrobial agent persisting in this quality will decrease the growth of bacteria which is the decreased viable count. In option b, Gamma radiations are ionizing radiations but UV- radiations are non-ionizing radiation thus, gamma radiations are more harmful than UV- radiation.
In option c, Food preservation at a cold temperature gives a dormant state to bacteria thus the growth of bacteria is bacteriostatic, and not bacteriocidal. In option d, Disinfection is different from sterilization, they both are decontamination process where disinfection is the process of killing and sterilization is the process of killing.
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someone diagnosed with meningitis has inflamed membranes that cover and protect the brain and spinal cord. meningitis is a result of pathogenic gram-negative bacteria that cause extreme infections when their bacterial cell wall dies and lipopolysaccharide (a lipid and polysaccharide) is released. the lipopolysaccharide is an example of a(n) endotoxin. exotoxin. stomach microbiota. parasite.
Meningitis is a result of pathogenic gram-negative bacteria that cause extreme infections when their bacterial cell wall dies and lipopolysaccharide is released. The lipopolysaccharide is an example of an endotoxin.
What are endotoxins?
Large bacterial toxins known as lipopolysaccharides are composed of a lipid and a polysaccharide. They may be found in the outer membrane of Gram-negative bacteria and are made up of an O-antigen, an outer core, and an inner core that are all connected by a covalent link.
First off, endotoxins are harmful when they reach the bloodstream because they can cause fever and a variety of other negative effects, such as aseptic shock and even death. The health effects of endotoxin, a strong inflammatory agent, are well known and include fever, trembling chills, septic shock, toxic pneumonitis, and respiratory symptoms.
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2. Sedimentary rocks can exhibit some similar
characteristics as a result of the processes
that formed them. Which pair of effects
would be most likely to allow for the
formation of similar sedimentary rocks?
A. the effects of particle size and energy
B. the effects of constant motion and weathering
C. the effects of hot surface interaction and
weathering
D. the effects of precipitation and a uniform
particle size
The correct answer is option A. the effects of particle size and energy
What is sedimentary rocks?
In contrast to metamorphic and igneous rocks, which are generated deep beneath the Earth, sedimentary rocks are formed on or around the surface of the planet. Weathering, dissolution, precipitation, and lithification in the earth's crust are the primary causes of the creation of sedimentary rocks.
Sedimentary rocks are constructed from pre-existing rocks or remains of extinct creatures. They emerge from deposits that amass on the Earth's surface. Sedimentary rocks can have recognizable stratification or bedding. Many of the picturesque vistas of the desert southwest contain mesas and arches made of layered sedimentary rock.
By weathering preexisting rocks, transporting the weathering byproducts, and depositing them, sedimentary rocks are created. When rocks at the Earth's surface are exposed to the atmosphere (mostly in the form of rainfall) and the hydrosphere, numerous processes of physical disintegration and chemical degradation take place. These activities result in the formation of soil, unconsolidated rock debris, and substances dissolved in runoff and groundwater. The process of erosion involves moving weathering products from the weathering site, either as solid material or as dissolved components, to finally be deposited as sediment. Sediment is any unconsolidated accumulation of solid, weathered material.
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Dwarfism in pea plants is caused by a single gene. Tall is a dominant trait and dwarf is a recessive trait. If two dwarf pea plants were crossed, their offspring will be?.
Tall is a dominant trait and dwarf is a recessive trait. If two dwarf pea plants were crossed, their offspring will be dwarf because there in no dominant gene to mask the dwarfism since both parents are homozygous recessive.
Short stature caused by a genetic or medical disease is known as dwarfism. A height of 4 feet 10 inches (147 cm) or less in adulthood is considered dwarfism. Individuals with dwarfism are typically 4 feet tall as adults (122 cm). Dwarfism is brought on by a variety of medical disorders. The term "homozygous recessive" refers to an organism that possesses two identical copies of the recessive gene. Learn more about the meaning of homozygous recessive and examples of genetic illnesses caused by this gene.
Recessive alleles, also known as homozygous alleles, only manifest their effects in individuals who have two copies of the allele.
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A bacterium converts light energy into chemical energy.
A. cellular respiration
B. glycolysis
C. photosynthesis
According to the research, the correct answer is C. A bacterium converts light energy into chemical energy represents the photosynthesis process.
What is photosynthesis?It is the process by which light energy is used for the synthesis of carbohydrates from CO2 and a reducing molecule.
In this sense, in nature there is a great diversity of photosynthetic bacterium, which obtain their energy from light to grow through the manufacture of sugars through chemical reactions.
Therefore, we can conclude that some bacteria are photosynthetic microorganisms capable of converts light energy to form sugars for energy.
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I'LL MARK BRAINLIST PLS HELP ME ITS DUE NOW!!!!!!!!!!!!!!!
Answer:
Explanation:
Birds (youngest)
Dinosaurs (younger than amphibians)
Amphibians
Corals(exists between trilobites and amphibians)
Trilobites(oldest)
Answer:
birds
dinosaurs
amphibians
corals
trilobites
Explanation:
Birds are the youngest which makes them the top layer (cus they died last )Means it is A
Trilobites is the oldest which makes them the last layer ,layerE
Dinosaurs is younger than birds so it is B
And amphibians is younger than dinosaur so is either C or D
Corals is in between Trilobites and amphibians Means that amphibians will be C and corals will be D.
hope this helps u understand , and get me the BRAINLIEST please
n the lab, you are observing some plant roots and notice that in many of the root cells there are tree-like projections inside the cells. subsequent staining indicates that these structures are fungal in origin. what are these structures? what is their purpose? (select all that apply)
These tree-like projections are called Mycorrhizae. These are symbiotic associations between plants and fungi. Their major role is to amplify nutrient and water takeup by the host plant by utilizing a larger volume of soil than roots alone can do.
Mycorrhizae come in several forms, dependent upon both host plant and fungal taxonomy. The distribution of these forms in ecosystems is related to host plant distribution and climatic and soil conditions. The ability of mycorrhizae to improve host plant nutrient and water acquisition and to help in the defence of root pathogens and root grazing can alter the host plant's performance.
Mycorrhizae are being used in agriculture, forestry, and restoration to improve yields and overcome some of the pollutants associated with plantings on disturbed sites. The ability of mycorrhizal fungi to accumulate heavy metals makes them possible candidates for the restoration and remediation of polluted environments.
Mycorrhizae can be advantageous to crops grown in soils with low nutrient supply. Mycorrhizal associations can lead to increased nutrient concentrations in plant tissue, particularly nutrients (e.g., P and Zn) which are contigent on diffusion toward roots for uptake. Therefore, the management of mycorrhizae is becoming a potential method for crop nutrient management.
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