The Theory of Evolution is based on the concept of natural selection. Name and explain two requirements for natural selection.

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Answer 1
Two concepts are that there is already variation in the population and those variations allow some individuals better chances to survive and reproduce. The variation in a population comes from mutations to the DNA, independent assortment of chromosomes during meiosis, crossing over during meiosis, and fertilization. This change in DNA gives organisms different genetic codes which show up as different color, height, body shape, etc. If these changes produce traits that make the organism better able to survive and find a mate—better camouflaged color, faster, able to eat a new food, then that organism will find a mate and produce offspring that may have that new trait. Over time, the offspring with that new trait will compete with other organisms and also survive better and reproduce so the trait will be more prevalent in the population.

Related Questions

Match the component of the cerebral nuclei with its function.
a. Involved in consciousness and integration of information from multiple senses (Click to select)
b. Stimulates muscles to produce the pattern and rhythm of walking (Click to select)
c. Excites and inhibits the thalamus to adjust muscle tone (Click to select)
d. Involved in emotion, behavioral activity, and mood (Click to select)
e. Controls muscular movement at the subconscious level
1- claustrum
2- caudate nucleus
3- globus pallidus
4- amygdaloid body
5- putamen

Answers

The components of cerebral nuclei with its correct functions are listed below.

Claustrum: This is involved in consciousness and integration of information from multiple senses. That is option A.

Caudate nucleus: This stimulates muscles to produce the pattern and rhythm of walking. That is option B.

Globus pallidus: This excites and inhibits the thalamus to adjust muscle tone. That is option C.

Amygdaloid body: This is Involved in emotion, behavioural activity, and mood. That is option D.

Putamen : This controls muscular movement at the subconscious level. That is option E.

The cerebral nuclei makes up the three components of the cerebrum that plays an important role in neural systems controlling somatic movement and motivation.

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How are stem cells nurtured to form a tissue/organ?

Answers

Answer:

Stem cells have the capacity to proliferate and to differentiate into relatively mature cells of various types. Embryonic stem cells can become any organ in the body and do so when implanted into a blastocyst. In principle, then embryonic stem cells could be used to replace any organ in the body.

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Gene mapping is based on which of the following? Mendelian ratio of offspring frequency of crossing over physical distance of traits law of independent assortment

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I think it’s the last thing

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Answers

Answer: yes

Explanation:

through which pathway are most water and solutes reabsorbed in the kidney tubule?

Answers

Answer:

proximal tubule

The majority of water reabsorption that occurs in the nephron is facilitated by the AQPs. Most of the fluid that is filtered at the glomerulus is then reabsorbed in the proximal tubule and the descending limb of the loop of Henle.

Explanation:

The proximal tubule is the segment of the nephron in kidneys which begins from the renal pole of the Bowman's capsule to the beginning of loop of Henle. It can be further classified into the proximal convoluted tubule (PCT) and the proximal straight tubule (PST).

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exhibiting a personality that ________ is a common characteristic of all personality disorders.

Answers

Answer:

borderline or narcissistic

Explanation:

i think that right

Answer:

differs markedly from the expectations of oneś culture.

what is the marsupials of gold fish?​

Answers

Answer:

what do you mean by this question

?

Answer:

In East Asia, the goldfish is a relatively small member of the carp family

Explanation:

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what is the main difference between humans and seals regarding oxygen stores?

Answers

Answer:

Seals store oxygen in their lungs, blood and muscle. Compared to humans, seals have larger lungs because they are also larger animals, but a greater proportion of oxygen is found in the blood rather than in the lungs.

during photosynthesis what type of energy is needed?

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Light Energy.

.............

A plant which loses its leaves in winter is known as which of the following?
O Biennial
O Bulb
O Evergreen
O Deciduous

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Answer:

Deciduous

Explanation:

what is the best example of transform foult?​

Answers

Transform faults are not limited to oceanic crust and whatever the over was; many of them are on continental margins. The best example is the San Andreas Fault on the Pacific coast of the United States.

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how the structure of a muscle cell is related to its functio​

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Answer:

The structure and shape of each type of human cell depends on what function it will perform in the body. The elongated shape of muscle cells allows the contraction proteins to line up in an overlapping pattern that makes muscle flexing possible.

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Answers

Answer:

The P waves undergoes compression and dilation during motion in its direction of propagation. This waves reaches the station first because the P waves travels at a speed, that is much faster in comparison to the S waves. The S waves are the secondary waves and are commonly known as the shear waves.

The P waves have the ability to travel in both solid as well as in liquid, whereas the S waves can propagate only in solid region because they are absorbed at the core-mantle boundary.

Thus, the P waves will arrive the station first and the difference between the arrival of P and S waves are plotted in the graph that helps in depicting the epicenter and the amount of energy released during an earthquake.

Explanation:

What roles do electrons and hydrogen ions play in the
light-dependent reactions of photosynthesis?

Answers

Answer:

Water is broken down into hydrogen ions, electrons, and oxygen gas. Electrons used for energy in photosynthesis but not for general cell needs. Electron energy is then used to make molecules that act as energy carriers.

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Answers

Answer:

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True or false if blood is pumped by the brain?

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Blood is not pumped by the brain
False! The blood is pumped by your heart

Why do plants need to preform cellular respiration like animals?

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Answer:

To break down food in form of sugar or glucose for energy to live

Which of the seven planets is closest to the sun

Answers

Answer:

mercury

Explanation:

Answer:

MERCURY.  

Explanation:

Genetic variation exists in organisms due to sexual reproduction and the combination of alleles from two parents. True False

Answers

Answer:

true

Explanation:

PMTA are the 4 stages of...

Answers

Answer:

premarket tobacco application (PMTA) is an application that must be reviewed and approved by the Food and Drug Administration before a new tobacco product can be legally marketed in the United States.

Explanation:


i) Give the genotype of person
5

Answers

Answer:

i have the same thing

Explanation:

how do plants and snails affect the CO2 and O2 gases in an aquatic environment

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Answer:

Water plants will absorb carbon dioxide for photosynthesis, and some plants will also absorb ammonia (as a source of nitrogen for growth). Aquatic animals like fish and snails absorb oxygen and release carbon dioxide directly into water through specialized structures like gills.

Explanation:

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Answers

I would say it is true and if it isn’t then I’m sorry.

Answer:

T

Explanation:

2. What portion of the DNA is also known as a gene?

A. The coding sections

B. The noncoding sections

C. The mRNA strand

D. The polypeptide sequence

Answers

Answer:

the coding sections

Explanation:

non coding sections aren't considered as genes.mainly genes are translated into proteins which show our traits and general features

Which of the following muscles gives Reed his defined six-pack?

Answers

Answer:

a. Rectus abdominis

Explanation: is correct

Which of the following was NOT a type of evidence Darwin had available in his time?
A. Comparative Anatomy
B. DNA
C. Fossils
D. Artificial Selection

Answers

DNA was not a type of evidence Darwin had available in his time!!

4. Why are lichens successful pioneers?

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Answer:

Lichens are successful because they grow on bare rock. Also, they are made up of algae that provides food and energy through photosynthesis that attach to rock and capture moisture. ... Algae and other organisms grow, reproduce, and die and gradually fill pond with organic matter.

By enabling the auto keyframe tool, any changes you make to the position, rotation, or scale of an object will be saved on the active frame.

Answers

Answer:

True

Explanation: is correct

How does acid help digestion

Answers

Answer:

When digesting food, acids in your stomach help break down the food particles to easily travel into your intestines!

0
Which biomolecule has a carbon-nitrogen bond?
starch
water
protein
glucose

Answers

Answer:

protein

Explanation:

it is called a peptide bond

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