Explain the idea of "survival of the fittest" with regards to a population of beavers in a lake in which some have large incisor teeth and others have small incisor teeth.

Answers

Answer 1
If the beavers need large teeth to collect wood for their dams, the population of beavers with larger teeth will live longer because they can collect wood. They will them be able to reproduce therefore passing down the gene with larger incisor teeth
Answer 2

The study of gradual change is called evolution.

The correct answer is mentioned below.

What is evolution?Evolution is a change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.

According to the question,

If the beavers need large teeth to collect wood for their dams, the population of beavers with larger teeth will live longer because they can collect wood. They will then be able to reproduce therefore passing down the gene with larger incisor teeth.

For more information about the genes, refer to the link:-

https://brainly.com/question/14688752


Related Questions

Characteristics such as a widow’s peak or attached earlobes are determined by the genetic code. Which components of DNA are referred to as the genetic code?


A. Phosphate groups
B. Nitrogenous bases
C. Deoxyribose sugars
D. Hydrogen bonds



PLEASE HELP!!!

Answers

the answer is a or b i’m not sure

Explain how a mutation has caused the Lactase Persistence gene in some people and not in others.

Answers

Answer:

It is a case of human niche construction

Explanation:

Lactase is an enzyme of mammals which is required to digest lactose. In humans (like in other mammals), lactase activity decreases during mid-childhood; although there are individuals which are still capable of producing this enzyme even during adult life, a trait known as 'lactase persistence'.  Different mutations in the coding region of the lactase gene have been associated with lactase persistence in European, African and Asian populations. On the other hand, the niche construction theory states that the organisms, through their activities and choices, actively modify their own local environment by introducing novel selection pressures. Some examples of niche construction include, among others, alternation of nutrient cycling by plants or lactase persistence in humans. Lactase persistence can be defined as a case of niche construction because this trait was not only genetically inherited but also culturally transmitted through local environments shaped by ancestral populations, i.e., generated by niche construction or ecological inheritance.

Digestion

CO2

Organic molecules

Oxygen (O2)

Cellular respiration



(Words may be used more than once)


Carbon atoms enter the child as part of ________________ . These will first be broken into smaller molecules by _____________. These smaller molecules contain the same ____________ energy. The child needs oxygen so that his cells can perform _______________ __________________ . This process transforms _____________ energy into ____________________ . The carbon atoms leave the child in ________ .
Please help

Answers

Answer:

Organic molecules

Digestion  

Cellular respiration

CO2

Explanation:

Carbon atoms enter the child as part of organic molecules. These will first be broken into smaller molecules by the process of digestion. These smaller molecules contain the same amount of energy. The child needs oxygen so that his cells can perform cellular respiration. This process transforms chemical energy into energy, carbondioxide gas and water. The carbon atoms leave the body of the child in the form of carbondioxide gas through breathing process..

According to the reading, the sun is NOT a typical star.
O True
O False

Answers

Flase


Done !!!!!!!!!!

What increases as you move from the surface to the interior of the Earth?

Answers

Answer:

Heat/temperature

Explanation:

"There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted, which has not yet been lost; (2) frictional heating, caused by denser core material sinking to the center of the planet; and (3) heat from the decay of radioactive elements." These give the core and a few of the outer layers of the earth more and more heat.

If a tRNA molecule has an anticodon which reads CAG, what was the codon on the mRNA molecule?
(4 points)
answers:
AUG
GTC
UAG
GUC

Answers

Answer:

GUC

Explanation:

The base sequence for tRNA will be the complement of the mRNA sequence:

tRNA: CAG

mRNA: GUC

Answer:

GUC

Explanation:

Codons is a set of three nucleotides that can code for multiple different proteins.
True
False

Answers

I think this is false


:):):):):)

4. Molecules that pass through cell membranes by facilitated diffusion include
e. large molecules.
f. hydrophobic molecules.
8. oxygen molecules.
h. two of the above

Answers

Answer:

E. Large molecules

Explanation:

Large molecules cannot pass through the membrane without help they are too big. This is because the membrane is very selective with what it let enters.

2) One of two or more alternative forms of a gene, represented by a single letter. ​

Answers

Answer:

Its an allelle that has two or more alternative forms of same gene

please help me with questing 16

Answers

Answer:

It's either C. or D. I think I'm more leaning toward all of the above.

Explanation:

Adaptation is when organisms change to adapt to the environment.

For example, a white moth could turn black to blend in with certain tree barks, shadows, dirt, etc. Hope this helped!

Gravitational force multiple choice

Answers

Answer:

Option B. The force would be quartered (factor of 1/4).

Explanation:

The gravitational force between two objects can be expressed with the equation:

By analyzing the equation, we can see that if we multiply both m1 and m2 by 1/2, the resulting new F would be lower by a factor of 1/4 (as 1/2 times 1/2 equals 1/4).

Thus the correct answer is option B.

(HELP PLEASE I WASNT IN SCHOOL YESTERDAY) All of these forms of energy are involved in the human body's everyday life EXCEPT
Group of answer choices

mechanical energy

thermal energy

nuclear energy

Answers

Answer:

I'm pretty sure it's nuclear energy.

Answer:

the answer is the last one hope it helps

In the diagram which of the following is the secondary consumer
The caterpillar
The Snake
The Leaf
The Mongoose

Answers

the answer is the chameleon

Answer:

THE ANSWER IS THE SNAKE

Explanation:

PLEASE MARK ME AS BRAINLIEST

Cellular respiration is a biological process in which glucose is broken down to form energy in the form of ATP. The reactants have a starting energy of 3564 kilojoules of energy, and the products have a resulting 2878 kilojoules of energy.

Which best describes cellular respiration?

It is an exothermic reaction because energy is lost.
It is an exothermic reaction because energy is gained.
It is an endothermic reaction because energy is lost.
It is an endothermic reaction because energy is gained.

Answers

Answer: (It is an endothermic reaction because energy is gained.)

It converts energy in food into a more usable form.

Answer:

d

Explanation:

1. Carbon is a very important element in biology. What are some of the reasons that organisms need carbon? please help me

Answers

Answer:

"All living orgasms contain carbon and all virtual molecules in the body contain carbon, sugar, DNA, proteins, Fats..."

Explanation:

Hope this helps :)

2. Create a complementary
strand of DNA for the
DNA strand show below.
A T C G T G A

Answers

Answer:

T A G C A C T

Explanation:

Adenine (A) and Thymine (T) are base-pairs, alongside Cytosine (C) and Guanine (G). Only A - T or G - C are base-pairs in DNA strands, you will never see Adenine (A) and Cytosine (C) together in a DNA or RNA strand.

If you were on the ISS (International Space Station), how would you know that a solar eclipse took place on Earth?

Answers

Answer:you could ask your family or look it up you ar probably right next to a sadelite

so connection should be pretty good

n the experiment "What Effect Does Vinegar Have on Plant Growth?" some plants were given only water, some were given only vinegar, and the others were given various mixtures of water and vinegar. Which of the following groups is the control group in the experiment?
50% water and 50% vinager
100% water
100% vinager
or 25% vinager and 75% water

Answers

50% water and 50% vinager

Under certain external conditions, a person will perspire a great deal. For which internal condition does this response primarily provide homeostasis?

Answers

Answer:

Abnormally high temperature

Explanation:

Sweating or perspiration is a homeostatic response to abnormally high body temperature. Evaporation of the sweat causes cooling of the body and this causes the temperature of the body to return back to normal.

When the setpoint temperature of the body is breached by being too high, the negative feedback mechanism kicks-in, and the sweat glands of the skin becomes activated. The body sweats, and the evaporation of the sweat from the surface of the skin causes cooling and a return back to the setpoint.

What are three differences between rocks and soil

Answers

Answer:

Rocks are made of one or more minerals. based on the way the rock was formed: sedimentary metamorphic and igneous Soil is formed of fine rock particles mixed with air, water and particles from dead plant and animal matter.

How does the size of a bacterial cell compare with an animal cell?

Answers

Answer:

hope it helped

Explanation:

Bacterial cells are very small - about 10 times smaller than most plant and animal cells. Most bacterial cells range in size from 0.2 to 10 microns or micrometers (0.0000079 to 0.00039 inches). ... One reason why bacterial cells are so small is that they need a large surface area to cell volume to take in nutrients.

What is the force of a ball with a mass of 5 N if it accelerates at 10 m/s/s?

Answers

Is 50 for force just multiply the mass by its acceleration so is 50 N

How are viruses different from bacteria?

Answers

A - Viruses cannot survive outside of a host whereas bacteria can.

Answer:

A.

Explanation:

WHAT IS THE OZONE LAYER?

Answers

Answer:

the ozone layer is a thin part of the Earth's atmosphere that absorbs almost all of the sun's harmful ultraviolet light. "Ozone holes" are popular names for areas of damage to the ozone layer.

Ninety nine percent of the atmosphere is composed of _____ and _____.

Answers

Answer:

Ninety nine percent of the atmosphere is composed of Nitrogen and Oxygen

Answer:

78% nitrogen and 21% oxygen

Explanation:

All cells in an organism have the same copy of DNA, because they all came from the same orginal cell.
True Or False

Answers

the answer would be true

Describe what occurs during normal cell division.

Answers

Answer:

mitosis

Explanation:

Mitosis the process of cell division where a cell complete spits itself into 2 daughter cells with the same number of chromosomes as the parent cells it has 2 major parts

Answer: Mitosis

Explanation: other words for it is normal cell division, this is a normal occurrence

In a species of flowers, red petals (R) are dominant to orange petals (r). If two plants that are heterozygous for red petals are crossed, what are the possible genotypes of the offspring?

Answers

Answer:

RR, Rr, rr

Explanation:

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Place the terms into the correct column that describes the reactions of photosynthesis.

Answers

Answer:

In the light-dependent reaction, which occurs in the THYLAKOID MEMBRANE of the chloroplast, energy from SUNLIGHT is used to breakdown WATER to release electrons in order to synthesize ATP and NADPH from ADP and NADP+. In a nutshell, the processes involved in this stage are Electron transport chain, photosystem I, photosystem II, and ATP synthase.

- In the light-independent stage, also called CALVIN CYCLE, the ATP, NADPH, and CO2 are used as reactants to synthesize SUGAR (glucose), NADP+ and ADP (which goes back to the first stage) as products.

Explanation:

In the light-dependent reaction, which occurs in the THYLAKOID MEMBRANE of the chloroplast, energy from SUNLIGHT is used to breakdown WATER to release electrons in order to synthesize ATP and NADPH from ADP and NADP+. In a nutshell, the processes involved in this stage are Electron transport chain, photosystem I, photosystem II, and ATP synthase.

- In the light-independent stage, also called CALVIN CYCLE, the ATP, NADPH, and CO2 are used as reactants to synthesize SUGAR (glucose), NADP+ and ADP (which goes back to the first stage) as products.

The light-dependent reactions involve both photosystems I and II along with the electron transport system. ATP is synthesized in this reaction, so ATP synthase is also included.

What is Photosynthesis?

Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.

The light-dependent reaction of photosynthesis occurs in the thylakoid membrane. Sunlight and water are the reactants of this reaction. The products of this reaction are NADPH, ATP, and oxygen.

Light-independent reaction involves the Calvin cycle. It occurs in the stromal part of the chloroplast. The reactants of this reaction are carbon dioxide, ATP, and NADPH while the products are glucose, NADP+, and water.

Therefore, the difference between light-dependent reaction and light-independent reaction is well described above.

To learn more about Light-dependent and light-independent reactions, refer to the link:

https://brainly.com/question/28981432

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5. The sodium-potassium pump is an example of
i. simple diffusion.
j. passive transport.
facilitated diffusion.
k. none of the above

Answers

Answer:

its passive transport

Explanation:

The sodium-potassium pump sets the membrane potential of the neuron by keeping the concentrations of Na+ and K+ at constant disequilibrium.

K

The Sodium-Potassium Pump. Active transport is the energy-requiring process of pumping molecules and ions across membranes "uphill" - against a concentration gradient. ... In active transport, as carrier proteins are used to move materials against their concentration gradient, these proteins are known as pumps.
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