Answer:
The Gymnosperms and Angiosperms are groups of plants with seed, which means that they don't necessary acquire water for fertilization. ... The sperm (male gamete) of gymnosperms is enclosed in a pollen grain. Thi structure is protected from desiccation and can reach the female organs without dependence on water.
Explanation:
A cell converting food into energy and removing waste products are examples of:
a. Photosynthesis
b. Pinocytosis
c. Homeostasis
d. Evolution
Answer:
A
Explanation:
7. When did whale ancestors begin living full time in the water?
Driving from Maine to Florida, you observe that squirrels living in the southeastern United States are much thinner than squirrels living in the northeastern part of the country. You tell your friend that you have a theory that squirrels living in the northeast have greater fat reserves for the winter months when food is scarce. Which of the statements are true? Select all that apply.
Answer:
See the options and the answer below
Explanation:
The available options to the question are:
Your statement is a valid scientific theory. Your statement uses the word "theory" in a non-scientific, colloquial way. Your statement is a hypothesis rather than a scientific theory. Your statement is not a theory but a fact.The correct answer would be that:
the statement uses the word 'theory' in a non-scientific, colloquial way. the statement is a hypothesis rather than a scientific theory.A hypothesis is a generalized statement with little or no experimental test. When a hypothesis is tested using a suitable experiment (s), it can either become valid or invalid. In order words, hypotheses are falsifiable. A theory on the other hand is a hypothesis that has been tested several times by independent researchers and found to be true.
In the illustration, the statement made concerning the squirrels is based purely on guess and not on fact. The use of the word 'theory' in the statement is totally unscientific. Only suitable experiments can prove or disprove the statement.
The correct options are 2 and 3.
How many atoms are needed to form a molecule?
Answer:
2
Explanation:
Scientific theories can change over time as new information is discovered. If a scientific theory changes, does this mean that it was not a good theory to begin with?
Answer:
The explanation of a phenomenon is called a scientific theory. It is a misconception that theories turn into laws with enough research
Help due tomorrow!!!
Answer:
approximately 5,730 years
which of the following is most consistent with the modern theory of evolution
The correct answer is Parents pass their physical traits to their offspring; those offspring with traits that help them survive in their environment are able to reproduce.
Explanation:
The modern theory of evolution explains the mechanisms that make organisms change. One of the main ideas this theory proposes is that organisms with traits that help them survive or reproduce have higher chances to pass their genes and traits to new generations. This mechanism makes certain traits to be favored and contributes to the evolution of organisms because after multiple generations certain traits will prevail while others will be eliminated.
Moreover, this theory specifies genes in an organism are not acquired or modified during its life but these are the results of the traits passed to the organism by its parents and evolution occurs only after a long time or multiple generations. According to this, the first option is the correct one.
What are possible products of glycolytic, or anaerobic, catabolism?
Answer:
The products of a glycolytic metabolism is lactic acid and the increase of the insulin enzyme at the plasma level.
Explanation:
Lactic acid is the product of the reaction of glucose catalysis in oxygen-deficient states such as in anaerobic activity.
Lactic acid is an acid that can be metabolized by the body, which accumulates in the muscles, and is generated once the physical activity has finished or in the last stages.
Insulin, once generating the rest of the activity, or the cessation of the action, comes into play at the plasma level and increases, in order to neoform new energy reserves (glucose) and thus prepare for the next action.
This hormone has the opposite effect to glucagon.
Any change in a LLEL frequencies in the gene pool is called
Answer: microevolution.
Explanation:
Allele frequencies in a population may change due to gene flow, genetic drift, natural selection and mutation
What’s the main difference between the two main groups of prokaryotes?
(WILL REWARD BRAINLIEST!)
A. Location of DNA
B. Cell wall structures
C. Plasma membrane
D. Existence of ribosomes
A location of dna
There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead
Answer:
hopefully the diagram attached is helpful!
Explanation:
two main groups are ; bacteria and archaea
- they are single celled organisms that lack a nucleus
- bacteria cells walls contain peptidoglycan and archaea does not
- cell membrane in bacteria is is a lipid bilayer however in archaea it can be a lipid bilayer or a monolayer
In binomial nomenclature of organisms, every species name includes two words. The first word is the name of the _______.
Answer:
genus
Explanation:
Elena is making a grape drink
which plant cell structures provide evidence that plants are living organisms?
Answer:
chloroplasts
Explanation:
Answer:
Chloroplasts or Nucleus
Explanation:
The Nucleus holds DNA, which is in every living thing. However, nucleus' are also in animal cell. Specifically in a plant cell, the chloroplasts provide the evidence since they help the plant make it's own food.
The monomers of DNA are composed of?
Answer:
The monomers of DNA are composed of nucleotide.
Answer:
sugar, phosphate residue and a base or Nucleotide's
Explanation:
DNA consists of two long polymers that run in opposite directions forming the regular geometry of the double helix. The monomers of DNA are called nucleotides. Nucleotides have three components: a base, a sugar (deoxyribose) and a phosphate residue.
please give me brainley for this
each kidney has large number of functional units .what is the name of that functional unit
Answer:
nephron
Explanation:
edge :3
good luck <3
Raccoons will eat almost anything. They are most accurately called O carnivores O producers O herbivores O omnivores
Answer:
omnivores
Explanation:
Answer:
producers i belive
Explanation:
Phenytoin (sodium channel blocker) and ethosuximide (calcium channel blocker) are anti-seizure drugs that stop seizures from happening. These drugs work by inhibiting electrical impulses (action potentials) from occurring. Explain the importance of sodium and calcium channels on a neuron and and the reasons why action potentials do not occur when these channels are inhibited
Answer:
Phenytoin and ethosuximide are drugs that slow the recovery of the sodium channel during the inactivated state.
That is to say, they prolong the inactivation state of the channel, thus generating that in this way the neuron remains in resting potential and the action potential causing the epileptic attack is not triggered.
On the other hand, these drugs, according to the bibliography of the book "Golan, 3rd Edition, Principles of Pharmacology" have a use-dependent affect capacity, this means that those sodium channels that have more activity will be more affected, in this way Not only is epileptic shock avoided, but if the same happens independently in any neuron, it will not be able to propagate the action potential to its neighboring neurons, therefore the surrounding neurons will not be stimulated and will not be fulfilled. with the sudden rapid discharges that are the most dangerous in some cases of severe epilepsy.
It is important to understand that these drugs affect the ion channels responsible for exciting neurons, that is why by inhibiting them, a constant rest of these neurons is promoted, and they are unable to generate abrupt discharges and dissemination of the electric charge. among them generating epileptic shocks.
The ions in neurons are in charge of indicating or modulating the different neuronal states, if they are inactive, open or closed, they will directly affect the membrane potential, that is, the positive or negative charge of the neuron's membrane.
Explanation:
In order to finish completing the question, these drugs are excreted through the p450 protein, that is why if this excretion system becomes saturated because another drug is consumed that is excreted in the same way, these antiepileptics will remain longer in use. blood and in the body, generating a greater effect and enhancing adverse effects on the central nervous system.
HELP ASAP! Please help me with these 5 questions, they'd mean a lot! Giving you all my points, please answer.
1. Condensation is the basis by which ______ are formed both in the sky and near the ground as fog.
2. Evaporation occurs when the _______ heats up water in rivers, lakes, or the ocean and turns it into vapor or steam.
3. The Earth water cycle is responsible for all the _______ on the Earth.
4. The water in the atmosphere usually gets into the atmosphere by the way of ______.
Answer:
1. Condensation is the basis by which water droplets are formed both in the sky and near the ground as fog.
2. Evaporation occurs when the sun heats up water in rivers, lakes, or the ocean and turns it into vapor or steam.
3. The Earth water cycle is responsible for all the water on the Earth.
4. The water in the atmosphere usually gets into the atmosphere by the way of transpiration.
Explanation:
I hope this helps you:) I'm sorry if some of them are wrong... I did my absolute best.
How are lysosomes and vacuoles the same? How are they different?
Answer:
Vacuole is a cell organelle which contains mainly water while lysosomes also cell organelle and are regarded as bags by function. Vacuoles stores the undigested nutrients while the Lysosomes are the membrane bound sacs containing digestive enzymes that breaks down large molecules.
Answer:
Vacuole is a cell organelle which contains mainly water while lysosomes also cell organelle and are regarded as bags by function. Vacuoles stores the undigested nutrients while the Lysosomes are the membrane bound sacs containing digestive enzymes that breaks down large molecules.
Explanation:
edg 2021
Metals are used in many products because of the characteristic properties that most metals have. Which product requires the high luster of metals in order to
work?
Answer: A mirrors
B. pots and pans
Cfood wrap
D.circuit boards
Answer:
the correct answer would be c
Explanation:
Answer:
A
Explanation:
The correct answer is A; Mirrors
Describe the characteristic of the endoplasmic reticulum
Answer:
The general structure of the endoplasmic reticulum is a network of membranes called cisterns, these bag-like structures are stretched together by the cytoskeleton. The phospholipid membrane surrounds the cystic space (or lumen), which is an extension of the nuclear space but is separated from the cytosol
The total magnification of a specimen viewed under a compound light microscope is determined by the power of the objective lens added to the power of the ocular lens the magnification power of the ocular lenses used the power of the objective lens multiplied by the power of the ocular lens the magnification power of the objective lenses used
Answer:
The power of the objective lens multiplied by the power of the ocular lens
Explanation:
Answer:
c. The power of the objective lens multiplied by the power of the ocular lens
Explanation:
can anyone help me with the questions above?
it says : which type of market structure consists of many firms which drive the price of a good or service down?
the answers are there
Answer:perfect competition
Explanation:
For good science you must prove your hypothesis correct? *
Answer:
Correct, It will help you proove your claim
Explanation:
Correct. You can't just say it's science just because you think it is, you have to prove it.
How can there be so many similarities between organisms, but also so many different types of plants, animals,
and microorganisms?
Answer:
Many of the similarities between organisms are the result of inheritance: organisms inherit features from their ancestors which they often use in similar ways. ... Other similarities occur because organisms at all places and times face similar problems: finding mates, avoiding predators, obtaining food.
Explanation:
Answer:
not all organisams are diffrent,just know that.
Explanation:although there might be diffrent speices they can still be in like the same organizam
30. An anatomist wishes to make detailed comparisons of
medial surfaces of the left and right sides of the brain. This
work requires sections that show the entire medial surface.
Which kind of sections should be ordered from the lab for
this investigation?
Answer and Explanation: In anatomy, bodies are divided by hypothetical geometric planes to describe location or direction of its structures. These planes are called Planes There are 3 reference planes:
1) Sagittal Plane divides the body into sinister and dexter (left and right) sides.
2) Coronal Plane divides into anterior and posterior portions.
3) Transverse Plane divides into superior and inferior portions.
For the anatomist, to have a section that shows the entire medial surface, should be ordered the Sagittal Plane, more especifically midsagittal (median) plane.
While you were on safari, your friend got bit on the leg by a posionous snake and nearly died from excessive hemolysis. Being a true scientist, you captured the snake and analyzed its venom to understand why it caused hemolysis. You found thwo enzymes, a protease (breaks down proteins), and a phospholipase. He isolated each of these enzymes and treated red blood cells with them. He found that only phospholipase caused red blood cell lysis. He also found that, after treatment of red blood cells with the phospolipase, there was excess amounts of free phosphophorylcholine (Choline phosphate group) and free diacylglycerol (glycerol with two hydrocarbon tails). 1.) What is the substrate for phospholipase and where does it cleave
Answer:
Phospholipase is an enzyme, which is classified into phospholipase A2 and phospholipase A1.
In this case we are talking about phospholipase A2, that is why the sn-2 ester bond of glycerophospholipids will be taken as a substrate, giving fatty acids as a product, such as arachidonic acid.
Explanation:
The glycerophospholipids used by this enzyme are those found in cell membranes, these pathways are usually associated with inflammation pathways for the formation of arachidonic acid that functions as an immunological mediator.
On the other hand, it must be remembered that membrane phospholipids are amphipathic, that is, with hydrophilic and hydrophobic molecules and are responsible for balancing the internal homeostasis of the intracellular environment.
How are you doing? Thank you for helping others. :)
Answer:
Explanation:
Fine, I believe. You're very much welcome...
Which of the following is a biotic factors in an ecosystem? O sunlight O nutrients in soil and water O precipitation O microorganisms
Answer:
microorganisms
Explanation:
Biotic factors include fungi,algae,bacteria etc.
While, Abiotic factors include soil, water ,sunlight and minerals
Answer:
[tex]\boxed {\tt D. \ Microorganisms}[/tex]
Explanation:
A biotic factor is a living thing in an ecosystem. For example: deer, rabbits, grass and trees are all biotic factors.
An abiotic factor is a nonliving thing in an ecosystem. Some examples include rocks, soil, and water.
Let's examine our answer choices.
Sunlight, nutrients, and precipitation are all nonliving, so they are abiotic factors. They can't be the correct choice.
That leaves: microorganisms. Microorganisms are very tiny organisms, like bacteria and amoebas. They are biotic factors, so the correct choice is D. microorganisms
Which feature do amber fossils have that mold fossils do not?
O preserved soft tissue
O organisms turned into rock
O solid copies of the original organism
O impressions of hard tissue left by organisms
Answer: preserved soft tissue
Explanation: just took the test!
The feature do amber fossils have that mold fossils do not preserved soft tissue. Thus, option A is correct.
What are fossils?
The fossil can be defined as the compression of the animal, plant or some organism that was living. It is compressed by the rocks or or settled in the water bodies in the form of sediments. The fossil residues have some of the carbon left in it.
This carbon is estimated by carbon dating in order to get the age of the fossil.The preserved fossils have carbon residue left which can be used as a source of information.
There are several types of the connective tissues: bones, ligaments, tendons, cartilage, and adipose tissue. In the foot, among all connective tissues, ligaments and tendons are the most abundant types. Ligaments and tendons mostly consist of densely packed collagen, which is the main structural protein of the connective tissues.
Therefore, The feature do amber fossils have that mold fossils do not preserved soft tissue. Thus, option A is correct.
Learn more about amber fossils on:
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