1. Which is a source of genetic variation?
a. Mutations
b. artificial selection
C. exponential growth
d. genetic bottlenecking
Answer:
Mutation is a source of genetic variation
Answer:
Mutations
Explanation:
Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms. Finally, genetic variation can be a result of sexual reproduction, which leads to the creation of new combinations of genes.
Make in you own words
When we leave the calvin cycle we have transformed into G3P which is a sugar that contains 3 of me!
We don’t stay in this form for long though
• What is chlorophyll ?
Explanation:
[tex] ♛\large\tt{answer} [/tex]
A green pigment in leaves which helps to capture the sun's energy
chlorophyll is the green coloured pigment and the most significant among photosynthetic pigments five types of role of error found in higher plants and elegant they are chlorophyll a, b ,c ,d and e are among these chl-a is the universal photosynthetic bacteria role of is also widely distributed in RBI approved and again but absent in some algae chlorophyll a and CHL blue green and yellow green in colour respectively Chlorophyll found and photosynthetic bacteria also they are Bacteria chlorophyll A and B 650 and 600 chlorophyll pigment are soluble in organic solvents
brief summary of conservation of forests & wildlife
least 10 page
With the advent of industrialization, several trees have been cut at an alarming rate for raw materials and various other purposes. This felling of trees can be regulated by selective cutting, clear-cutting and shelterwood cutting.
Forest fires are one of the common causes of loss of forests. Sometimes the forest land is set on fire to make the land available for commercial purposes. Once cleared, there can be no vegetation. Natural forest fires are also responsible for the destruction of huge forest covers. Latest fire fighting techniques should be adopted to conserve the forest. However, forest fires are an important part of the ecosystem and it helps replenish nutrients in the soil from dead and decaying matter.
More trees should be planted to increase the forest cover. Trees should be selected according to the geographical conditions of a particular region and proper care should be taken during the growth of trees.
Prevention of exploitation of forestry and forest products is necessary for the conservation of forest.
The existing forests should be protected from diseases by spraying chemicals, antibiotics or development of pest-resistant strains of trees.
The only system that does not pass through the thalamus on its way to the cerebral cortex is the __________ system. A. Tactile B. Gustatory C. Olfactory D. Visual.
The cerebral cortex process the information delivered by the thalamus, the information is related to the senses.
The only system that does not pass through the thalamus on its way to the cerebral cortex is the olfactory system.
The systems that pass through the thalamus are:
1. The visual sensation or information passes through the visual occipital cortex. It then delivers the information from the thalamus to the cerebral cortex.
2. The gustatory cortex is the region of the cerebral cortex, which is responsible for the senses of tastes and flavor. It also passes through the thalamus on its way to the cerebral cortex.
3. The tactile system includes the senses of touch. It is the information received through the receptors present on the skin. It also delivers the information to the cerebral cortex via the thalamus.
4. The olfaction system is not involved in the thalamus pathway. The olfactory cortex is present in the temporal lobe, which is not routed through the thalamus.
Thus, the correct answer is Option C.
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Answer:
C. Olfactory
Explanation:
Question
Tell whether x and y show direct variation. Explain your reasoning. If so, find k.
8=xy
Answer:
PREGUNTA:
INDICA SI XEY MUESTRAN VARIACIÓN DIRECTA .EXPLICA TU RAZONAMIENTO .SI ES ASI, BUSQUE K.
8=XY
Explanation:
ESPERO QUE TE AYUDE
What is the Spitzer telescope's primary function?
Answer:
The Spitzer Space Telescope, formerly known as the Space Infrared Telescope Facility, is an infrared telescope that studies the early universe, young galaxies and forming stars, and is used to detect dust disks around stars, considered an important signpost of planetary formation. Jul 30, 2008Explanation:
Hopes this helps. Mark as brainlest plz!Which statement is true about the law of reflection?
The angle of reflected light is the same as the incoming angle of light.
The angle of reflected light distorts the image to appear larger or smaller.
The angle of reflected light is smaller than the incoming angle of light.
The angle of reflected light is larger than the incoming angle of light
Answer:
The law of reflection defines that upon reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray, with respect to the normal to the surface that is to a line perpendicular to the surface at the point of contact.
The reflected ray is always in the plane defined by the incident ray and the normal to the surface at the point of contact of the incident ray.
The images produced by plane mirrors and curved mirrors can be understood by the law of reflection.
Law of reflection is defined as:
The principle when the light rays falls on the smooth surface, the angle of reflection is equal to the angle of incidence, also the incident ray, the reflected ray, and the normal to the surface all lie in the same plane.
What is Reflection of Light?
The process through which light rays fall on the surface and gets bounced back is known as a reflection of light.
Explanation:
Answer: The angle of reflected light is the same as the incoming angle of light.
Explanation:
The law of reflection states that the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. The angle of reflection is equal to the angle of incidence.
do aquatic animals living underwater can hear the sound produced outside the surface if water
Answer:
Believe it or not mammals like seals and pinnipeds otters and polar bears can but underwater animals hear very poorly
Explanation:
what is the process that breaks down nucleic acids into nucleotides
a. dehydration synthesis
b. synthesis
c. polymerization
d. hydrolysis
please help ty
Answer:
D. Hydrolysis
Explanation:
Dehydration synthesis reactions build molecules up and generally require energy, while hydrolysis reactions break molecules down and generally release energy. Carbohydrates, proteins, and nucleic acids are built up and broken down via these types of reactions, although the monomers involved are different in each case.
I hope this helps have a great day :)
The process that breaks down nucleic acids into nucleotides is hydrolysis. The correct option is d.
What is hydrolysis?Any chemical reaction in which a water molecule breaks one or more chemical bonds is known as hydrolysis.
When water is the nucleophile, the phrase is used generically to refer to substitution, elimination, and solvation processes.
Nucleo depolymerase is another name for nuclease. By cleaving the phosphodiester bond that connects the nucleotides in the nucleic acids, the nucleic acid is broken down into nucleotides.
Either an enzyme or a non-enzyme can cleave the nucleic acid chain. Since the initial step in the alkaline hydrolysis of a polynucleotide is the transfer of the bond from C5' of the subsequent nucleotide to C2' of the same nucleotide, a 2'-OH group is necessary.
Thus, the correct option is d.
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*Fill in the blank*
The biological molecule ____ usually makes up enzymes. Enzymes are used to ____ ____ the rate of a reaction within an organism. Each enzyme has a special shape called an ____ ____ where a ____ binds to break down into different products.
The enzyme can keep breaking down millions of substrates because it is ____ If an enzyme’s environment changes, it will not work effectively because the ____ of the active site changes. This change is called ____.
Words : site, | up | substrate | protein | denaturation | shape | reusable. | speed | active
Answer:
protein, speed up, active site, substrate, reusable, shape, denaturation
Explanation:
The biological molecule _protein usually makes up enzymes. Enzymes are used to _speed _up the rate of a reaction within an organism. Each enzyme has a special shape called an _active _site where a _substrate binds to break down into different products.
The enzyme can keep breaking down millions of substrates because it is _reuable If an enzyme’s environment changes, it will not work effectively because the _shape of the active site changes. This change is called _denaturation.
Fill in the blanks.
The biological molecule is a numerous substance that makes up the cells and living organisms. Has a wide range of sizes and structures. The enzyme is a substance that performed the works of a catalyst in living and regulates the chemical reactions.
Hence the answer protein, speed up, active site, substrate, reusable, shape, denaturation.
The biological molecules that makeup up the enzymes are known as protein, helps to speed up, the rate of the reactions within the organisms, and lead to the special shape known as an active site. There a substrate binds the break down into various products.The enzyme can be broken down into millions of parts and due to they are able to reusable and can change their shapes, the change in the enzymes is called denaturation.Learn more about the fill-in-the-blank.
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In Mendel's experiments with pea plants, the allele for tall pea plants was dominant and the allele for short pea plants was recessive. When did Mendel see short pea plants?
A. when the plants had two dominant alleles for height
B. when the dominant allele for tall plants was not present
C. when the plants had both a dominant allele and a recessive allele
D. when the pea plants produced yellow seeds
PLS HELP!
Answer:
B
Explanation:
if the reccesive trait is what you want then you cannot have any dominant alleles present
According to the dichotomus key, organism four is an?
Answer:
Did you know when you add 1 to 1 it will become 315.) Mutated
will make mutated
! which will make the wrong
Quick question: did I do this correctly?
which of these groups include organisms that are mostly closely related
Answer: the answer is D
Explanation: do you have picture proof?
Which of the following cooking methods is tailor-made for preparing a rib eye steak?
-frying
-marinating
-grilling
-roasting
Grilling is an excellent cooking method for preparing a rib-eye steak. Grilling can eliminate any type of bacterial contamination.
Grilling is a cooking method used to eliminate any type of harmful microorganism (e.g., bacteria).
This method (grilling) involves dry heat which is applied to the surface of the food as radiant energy.
Grilling cooking is a safe mode to eliminate bacterial contamination in meat (barbecue) and vegetables.
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Which is the highest population density of grasshoppers?
O
A. 35 grasshoppers/10 square meters
o
O
B. 40 grasshoppers/20 square meters
O C. 1 grasshopper/1 square meter
O D. 50 grasshoppers/30 square meters
35 grasshoppers/10 square meters has the highest population density.
The highest population density of grasshoppers is 35 grasshoppers/10 square meters because more number of organisms are present in less area as compared to other population density. In the option i.e. 40 grasshoppers/20 square meters and 50 grasshoppers/30 square meters have more number of organisms but the area is also greater.And we know that high population density means more number of organisms in less area so we can conclude that 35 grasshoppers/10 square meters has the highest population density.
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According to the information on the periodic table, which of the following could represent element X?
A. Aluminum (Al)
B. Sodium (Na)
C. Chlorine (Cl)
D. Nitrogen (N)
chlorine because it has 7 electrons on the outer shell
With two-thirds of Americans living in urban areas, what is one major factor that can impact the air, water, and soil resource
vessels that carry blood away from the heart are called
Answer:
arteries (red)
Explanation:
carry oxygen and nutrients away from the heart to your bodies tissues
Thick hair is dominant to thin hair and brown eyes are
dominant to blue eyes. If a man that is heterozygous
for thick hair and brown eyes and a woman is
heterozygous for thick hair and brown eyes, what is
the chance that they would have a baby with thin hair
and blue eyes?
Answer
1/4
Explanation:
1/4 properbility
Fertility is the measure of the ability to become __________. What one word completes the sentence
Fertility is the measure of the ability to become a parent.
FERTILITY:Fertility is a phenomenon that describes the ability to reproduce or produce offsprings.
Reproduction is one of the characteristics of living things and the ability to successfully execute this characteristics is termed fertility.
The opposite of fertility is sterility, which means the inability to produce offspring or reproduce.
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What is a population?
a. a group of organisms that occupy the same general area at different times
b. a group of individuals of a single species that occupy the same general area at the same time
c. the growth rate of individuals of a single species that occupy the same general area at the same time
d. the growth rate of individuals of a single species that occupy the same general area at different times
draw the flow chart showing the sequential order of reproductive stage and fertilization
The sequential order of reproductive stage and fertilization starts with the
male and female sex cells being produces through meiosis. The male sex
cell which is the sperm is produced in the testes while the female sex cell
which is the egg is produced in the ovary.
During copulation, the sperm cells are released into the vagina which then
swims through the cervix and uterus to the fallopian tubes where the
fertilization occurs.
There is then movement of the zygote formed from the fertilization to the
uterus where development occurs.
Please refer to the attachment .
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WILL GIVE BARAINLEST
Convection currents which cause plate tectonics occur in the ______
O lithosphere
O crust
O outer core
O asthenosphere
Answer:
D
Explanation:
Asthenosphere
Answer:
asthenosphere
Explanation:
What is probability and what is it’s role in scientific conclusion
A student claims that some animals form groups to increase their chance of surviving.
Which piece of information does the student need to support their claim?
O A. the types of animals that live in groups
B. survival rates of animals alone and animals that live in groups
O c. predictions about which animals will benefit from living in groups
D. behavior differences between animals that live alone and animals that live in groups
Answer:
B
Explanation:
It shows the survival rates of animals, that live alone vs the ones that live together. If this piece of data supports his claim then it will strengthen his/her claim.
explain how oxygen is cycled between the tree and the fox shown in the picture. name the specific processes involved.
Answer:
Cellular respiration and photosynthesis.
Explanation:
Carbon dioxide is put out by the fox and the tree absorbs it. The tree puts out oxygen and the fox inhales it.
. What is the width of Grandmother’s pelvis, measuring from the pelvic brim? How does her pelvis differ
from Grandfather’s?
The width of Grandmother’s pelvis, measuring from the pelvic brim is 2cm.
The grandmother has a wider pelvis than the grandfather.
The pelvic brim is found at the edge of the pelvic inlet and measures around
2cm. The pelvis in females are always wider than those found in males. This
is due to the adaptation of the female pelvis to child birth.
The pelvis being wider aids the passage of the foetus from the womb and
eases childbirth. This is the reason why the grandmother has a wider pelvis
than the grandfather.
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