Explain how genetic variation and environmental factors contribute to natural selection

Answers

Answer 1

Explanation:

Increasing genetic variation and the environmental effects on that variation form the basis for natural selection. A species with a great deal of genetic variability is more likely to survive as a species in a changing environment than a species with limited variability.


Related Questions

the first filipino olympic medalist​

Answers

Swimmer Teófilo Yldefonso, who finished the 200 meter breaststroke event.

A patient has swollen feet, ankles, and legs, and has pain in his lower back. Tests show the level of urea, a waste product, in the patient's blood has suddenly risen. Which body system is most likely not functioning properly?

A.
Nervous
B.
Excretory
C.
Digestive
D.
Reproductive

Answers

The answer is B. Excretory

The body system that is most likely not functioning properly is excretory system. The correct option is B.

What is excretory system?

The excretory system is a detached biological mechanism that removes excess, unneeded materials from an organism's body fluids to help maintain internal chemical homeostasis as well as prevent body damage.

The excretory system's function is to remove waste from the body. Water, CO2, nitrogen, salts, and heat are among the wastes. Metabolism refers to the process by which the body converts food into energy.

The primary function of the kidneys is to eliminate excess water and wastes from the bloodstream through the production of urine, a liquid waste.

As the patient has swollen feet, ankles and legs and having urea level boosted in blood, it means his excretory system has some problems.

Thus, the correct option is B.

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When food is being mechanically digested, it is being
(1) changed into another substance
(2) made smaller in size
(3) converted into energy
(4) excreted from the body

Answers

Answer:

(2) made smaller in size

Explanation:

Mechanical digestion involves physically breaking the food into smaller pieces.

Answer:

2

Explanation:

2 because it makes sense and we chew food to make it smaller to digest it easily

HELP ASAP!!!!

The image shows a facility that generates electricity.
miner
Which kind of energy does this facility harness?

Answers

Answer:

A) Gravitational potential energy of water

One side of a DNA molecule has the following sequence of nitrogen bases GGTACTTACGCA. What would be the complementary side’s bases? How many amino acids would that sequence code for?

Answers

Answer:  The arrangement of these nitrogen bases contains the code for

genetic traits. These bases are arranged in a particular

sequence, such as TGCATTCA. The sequences of DNA can vary

from several hundred bases to a million or more bases.

Explanation: put this and my teacher said amazing  

The complementary side’s bases if one side of a DNA molecule has the following sequence of nitrogen bases GGTACTTACGCA are: CCTGAAATGCGT.

What is the complementary sequence?

Thus, the complementary nitrogen base sequence of GGTACTTACGCA is CCTGAAATGCGT. It is because the complementary nitrogen bases pair up: A always pairs with T, and C always pairs with G.

The sequence codes for 4 amino acids. Every three nitrogen bases code for one amino acid. So, since there are 12 nitrogen bases, the sequence codes for 12/3 = 4 amino acids.

To determine the number of amino acids coded by this sequence, first note that a codon consists of three nucleotide bases, and each codon corresponds to one amino acid. The sequence has 12 bases, so there are 4 codons: GGT, ACT, TAC, and GCA. Since each codon codes for one amino acid, this sequence would code for 4 amino acids.

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Which type of bacteria is used to make cheese, sauerkraut and
fruit juices?

Answers

Answer:

the type of bacterias to make cheese is lactobacillus, lactococcus, and streptococcus.

Lactococcus for Cheese and penicillium for juice

Is mitosis essential to life?

Answers

Answer:

Yes

Explanation:

in order for you to fully function and stay alive the cells need to be replaced. mitosis is the reason we can grow, heal wounds, replace damaged body parts and cells. It also helps with organisms that reproduce.

QOD: have you downloaded Ecosia yet? why not? do it. n o w.

Answers

Answer:

What's Ecosia?

Explanation:

Explain how DNA results in the expression of a gene using the following words: DNA, mRNA, tRNA, gene, transcription, and translation

Answers

Explanation:

in order for a gene to even be transcribed, it must be "turned on" or "expressed" meaning the nucleotides have moved away from each other. after it's expressed, the gene will unwrap and continue on with transcription, and make mRNA copy of a DNA strand. once RNA is made it will leave nucleus and enter cytoplasm to find a ribosome. once it attaches to ribosome, translation begins, and a tRNA will bind to anti-codon, and the building of a polypeptide/protein will begin.

The process by which atomic nuclei spontaneously decay is called ________________. *

a. relative dating
b. radioactivity
c. erosion
d. deposition

Answers

b. radioactivity

The process by which atomic nuclei spontaneously decay is called radioactive decay. Explanation : This is also known as nuclear decay on a general basis In this process of radioactivity the unstable atomic nucleus loses energy .

plz help. how did Darwin almost ruin the data he had for his Galapagos finches?​

Answers

Answer:

by nearly dropping the book in the ocean

The seed capsules of the Himalayan balsam plant explode when touched and can eject seeds as far as 16 feet from the parent plant. Is this a structural adaptation, behavioral adaptation, or both?

Answers

Answer:

behavioral adaptation

Explanation:

A structural adaptation is defined as the adaptation in which physical features of organisms or plants while behavioral adaptation is defined as the activities an organism or plant do to survive.

The Himalayan balsam plant is an example of behavioral adaptation because it disperse its seeds when it ripe and touched by someone, for its survival it shows it dispersal behavior and spread seeds as far as 16 feet from the parent plant. In the fear of someone can harm by touching it, the survival instinct of balsam plant shows behavioral adaptation.

Hence, the correct answer is " behavioral adaptation".

why are fossil fuels supplies limited​

Answers

they are limited because many fossil fuels must be refined before being used. Years ago, when prehistoric animals and plants died, layers of rock and dirt gradually buried them. ... Other resources, like fossil fuels, are called nonrenewable, which means they have a limited supply and are not continuously being made or they are made very slowly

Answer: The coal, oil and natural gas we are consuming now are the remnants of plants, trees and animals that were living hundreds of millions of years ago. There is no way to replace them, as conditions on Earth are much different now.

Explanation: Mines and wells are being depleted much faster than they were a hundred years ago when demand was much less-- fewer people, fewer cars, fewer planes. . . and people believed there was an endless supply. Many of those mines and oil wells are now empty.

A benefit of GMO is that...?
A) they are creating super bugs
B) they are producing more crops
C) there is not enough research
D) there are changing natural ecology​

Answers

Answer:

B) They are producing more crops

Explanation:

GMOs are designed to increase crop productivity because of supply and demand, which in turn makes the supplier more money, and more happy people/companies that buy the crop. Additionally, the other answer choices would be considered bad traits.

HELP ME PLEASE ITS DUE IN TODAY

Answers

Answer:

The Male has the dominant genes and the female has weak genes.

Well I’ll say that the man has more powerful and strongest genes but the females are a lil weaker and less powerful

1. A disease vector is a(n)
A) organism that transmits a disease
B) symptom of a disease
C) environmental condition associate with a disease​

Answers

Answer:

the answer is A

Explanation:

Scientific names are understood by all scientists because the names are written in

Answers

Answer:

A. binomial system

B. According to taxon

Explanation:

A. The binomial system of nomenclature brings order to a chaotic world of common names. No two kinds of animals have the same binomial name, and every animal has only one correct name, as required by the International Code of Zoological Nomenclature, thereby avoiding the confusion that common names cause.

B. Any grouping of animals that shares a particular set of characteristics forms an assemblage called a taxon. For example, a housefly (Musca domestica), although obviously unique, shares certain characteristics with other flies (the most important of these being a single pair of wings). Based on these similarities, all true flies form a logical, more inclusive taxon. Further, all true flies share certain characteristics with bees, butter-flies, and beetles. Thus, these animals form an even more inclusive taxon. They are all insects.

Lionfish are native to the tropical waters of the Indo-Pacific. What conclusions can be made about the impact of climate change on the range of lionfish and, therefore, on biodiversity?

Answers

Answer:

The correct answer is - Climate change has restricted the habitat of lionfish. It has become an endangered species, reducing biodiversity.

Explanation:

As we know it is native to the tropical waters of the Indo-Pacific region. The change in the climate will increase the temperature of the water and this will lead to the restriction of habitat which lead to the reduction in the population of the fishes. As they live in the tropical climate they are habitual of warmer water and can not survive the climate change.

plssssssss helppppppppppppppp

Answers

Answer:

D- The code of chivalry by European knights

Explanation:

Bushido (武士道, "the way of the warrior") is a moral code concerning samurai attitudes, behavior and lifestyle. It is loosely analogous to the European concept of chivalry. There are multiple Bushido types which evolved significantly through history.


1. What is biodiversity?
a) The animals that live only in rain forests.
b) The rich variety of live organisms in every
ecosystem on Earth.
c) The animals and plants species that live
only in your backyard.

2. Why do we need biodiversity?
a) it provides us with the food we need to eat
b)it provides us with virtually all the things we need to stay alive
c)so we have plenty of trees to use for fuels and materials

3.which of the following places has the highest biodiversity?
a)madagascar &indian ocean islands
b)tropical andes
c)caribbean islands

4. how many biodiversity ‘hotspots’ are there in the world?
a)12
b)25
c)34

5. in these ‘hotspots’ how much of the worlds species are found there?
a)10%
b)25%
c)50%


6. what does ‘endemic’ mean?
a) when a lot of people fall ill
b) when something is only found in one place
c) when a disease spreads throughout the world

7. why is biodiversity under threat?
a) habitat destruction
b)introduction of exotic species
c) both of the above and more


8. what can you do to help save biodiversity?
a) reduce, reuse, recycle
b) plant trees, clean local rivers and parks and protect habitats
c) all of the above

Answers

Answer:

1.B

2.B

3.A

4.A

5.C

6.C

7.C

8.C

1.B 2.B 3.A 4.A 5.C 6.C 7.C 8.C

Should water (H2O) be included in the model as a reactant or product? If so, how should it be included?


Yes, as reactant A.
Yes, as reactant A.

Yes, as product B.
Yes, as product B.

Yes, as reactant C.
Yes, as reactant C.

No, it should not be Included.

Answers

Answer: A.) Yes, as reactant A.

Explanation: I hope this helps !!

What stage of photosynthesis uses
carbon dioxide to make glucose?


A. Light reactions
B. Calvin Cycle
C. ATP synthesis
D. Cellular respiration

Answers

Answer:

Calvin Cycle

Explanation:

The Calvin cycle takes over where the light reactions end. It uses chemical energy stored in ATP and NADPH (from the light reactions) and carbon dioxide from the air to produce glucose, the molecule that virtually all organisms use for food.

please solve question 6​

Answers

I am pretty sure number 4 is your answer

Select all that describe features of prokaryotes.
A. Prokaryotes don't have a nucleus
B. Prokaryotes absorb nutrients directly from the water they live in
C. The cells are surrounded by a cell membrane
D. Prokaryote Organelles are free within the cell
E. Prokaryotes are multicellular organisms

Answers

Answer:

A. Prokaryotes don't have a nucleus

D. Prokaryote Organelles are free within the cell

Explanation:

Answer:

A

D

B

Explanation:

Hope this helps

:)

The best determination of a community’s quality of life is _______.

Answers

The energy used per capita

The shadow of a tower is always directed toward the North at midday, as shown in the given figure. Where is the
tower located?
A)
North of the Tropic of Cancer or 23°N line
B)
Between the Tropic of Cancer and the Equator
South of the Tropic of Capricorn or 23°S line
D)
Between the Tropic of Capricorn and the Equator

Answers

I got c My teacher said I was Right I don’t know if it’s right for you

Answer:

A

Explanation:

*
Homologous chromosomes are pairs of chromosomes with

Answers

Answer:

Identical genes

Explanation:

Which is the largest organ?

sartorius
skin
hair
gluteus maximus

Science. The gluteus is the butt muscles

Answers

Answer:

Skin is the largest organ

Answer:

skin

Explanation:

skin is the largest organ in the body.

1. The line "... form a more perfect
Union" can be seen as a reference
to what document?
O Bill of Rights
O Ten Commandments
0 Article of Confederation
O Declaration of Independence

Answers

The bill of right if am wrong I am so so sorry.

Answer:article of confederation

Explanation:

Because I’m smart

what is the car's acceleration from 0 to 1 second

Answers

Answer:

What do you mean?

Explanation:

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