what is natural selection

Answers

Answer 1

Answer:

the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.

Explanation:


Related Questions

Is the ocean a carbon sink or a carbon source

Answers

Answer:

Explanation:

The Carbon CycleChanges to The Carbon CycleThe Ocean and CarbonBiological Pump

The ocean plays an important part in the carbon cycle. Overall, the ocean is called a carbon ‘sink’ because it takes up more carbon from the atmosphere than it gives up.Carbon dioxide from the atmosphere dissolves in the surface waters of the ocean. Some of the carbon dioxide stays as dissolved gas, but much of it gets turned into other things. Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter

the ocean is a carbon sink

How does the process of DNA replication impact mutations in an individual?
a All DNA replication stops when there is a mutation so the mutation wont hurt the individual
b Replication only produces new DNA strands so the old stand with the mutation is destroyed

c Since replication keeps the old strands as templates mutations maybe earned into future stands
d Mutations are often lost since the cell will die doring the replication process if the DNA is mutatie.​

Answers

Answer: A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.

Explanation:

When an instruction for a variation of a trait is not shown in by the organism, but the organism carrys it and can pass it on to the next generations, these organisms are called _______.

a
dominant
b
carriers
c
recessive
d
holders

Answers

Answer:

b. carriers

Explanation:

Recessive alleles do not create a phenotype if a dominant allele is present BUT the organism itself is called a carrier because it carries the recessive trait.

C) recessive hope this helps

PLEASE HELP!!!
List three factors that affect soil formation and explain “how” in 2 sentences each!

Answers

Parent material. Few soils weather directly from the underlying rocks. ...Climate. Soils vary, depending on the climate. ...Topography. Slope and aspect affect the moisture and temperature of soil. ...Biological factors. Plants, animals, micro-organisms, and humans affect soil formation. __________________FOLLOW ME

How could flying squirrel adapt further to allow it to be more successful?

Answers

Answer:

The structural adaptations of the flying squirrel has developed a good sense of balance, sail-like fur skin membrane that extends from the wrists to ankles, delicate wrist bones that control this membrane, allowing the squirrel to steer, and a fluffy tail that balances out and stabilizes the flight.

Water is a
compound. How do these images of water illustrate
this? Provide evidence to support the claim. Explain
your reasoning

Answers

Answer:

Is made up of different kinds of atoms chemically combined.

Explanation:

21.As mentioned in the video, the environment can also affect an organism's traits. The example of nourishment was used in the case for Spike, as this could affect his growth and size. This can also occur in humans. UV light was not mentioned in the video. How could UV light potentially affect an organism's trait? Provide one example.

Answers

Answer:

UV light can modify the DNA of a human being, provoking mutations that affect the traits. For example, exposure to the sun's UV rays affects the DNA of the skin cells, causing mutations that can lead to cancer.

Explanation:

An environmental factor that can affect humans traits is the exposure to UV light that the sun radiates. The DNA in our skin cells absorbs the UV rays. As a result, the DNA can suffer modifications that result in skin cancer. Also, the absorption of UV rays causes wrinkles since cell components are affected due to the accumulation of UV light.

Answer: UV light can modify the DNA of a human being, provoking mutations that affect the traits. For example, exposure to the sun's UV rays affects the DNA of the skin cells, causing mutations that can lead to cancer.

Explanation: An environmental factor that can affect humans traits is the exposure to UV light that the sun radiates. The DNA in our skin cells absorbs the UV rays. As a result, the DNA can suffer modifications that result in skin cancer. Also, the absorption of UV rays causes wrinkles since cell components are affected due to the accumulation of UV light.

This is a astronomy true or false question.
True or false: constellations represent physical connections between
their stars.

Answers

Answer:

true

Explanation:

Answer:

True

Explanation:

Hope it helps!!

Has anyone done this Sexual vs Asexual Reproduction before?

Answers

Answer:

Explanation:yes

Answer: for the genetic variation, the offspring gets a allele from each parent.

Explanation:

Yes

frank has type A blood (AA or AO) and margarita has type B (BB or BO) blood. They have a new baby. Vinnie, with type O blood. Is this possible or should frank accuse margarita of cheating?

Answers

Answer:

It is technically possible, if and only if, both parents have AO and BO blood.

Explanation:

the only way (most of the time) a child can get O blood is if both genes accepted by the parents are O.  That would mean both parents would have to have O recessive genes.

What 3 systems get put to work when feeding and how does each one work when you eat?

Answers

Answer:Digestive and muscular systems would be working together to chew food and work it down to the stomach to be digested. The digestive system and circulatory circulatory system would be working together to break food down and move nutrients to cells. The nervous system decides what to eat and when to chew.

Explanation:

provides protection and a space to move and breathe *

Umbilical cord
Amniotic sac
Amniotic fluid
placenta

Answers

amniotic sac is the answer <3
I think it’s B but I’m not fully sure

Put the steps of Protein Synthesis below into the correct order.
4 points
Step 1
Step 2
Step 3
Step 4
A Protein
molecule is
produced
An mRNA
molecule is
produced
mRNA interacts
with a Ribosome
DNA interacts
with RNA
polymerase

Answers

Step 1: dna interacts with rna polymerase
Step 2: mRNA molecule is produced
Step 3: mRNA interacts with a ribosome
Step 4 protein molecule is produced

The correct order is DNA interacts with RNA polymerase (1), the mRNA molecule is generated (2), mRNA interacts with a ribosome, and protein is produced (4).

What is transcription?

Transcription (gene transcription) is the process by which a fragment of DNA is employed to generate an mRNA.

This messenger RNA (mRNA) then travels to the ribosomes in the cytoplasm to generate a protein.

The process of translation refers to the protein synthesis by an mRNA template.

In conclusion, the correct order is DNA interacts with RNA polymerase (1), the mRNA molecule is generated (2), mRNA interacts with a ribosome, and protein is produced (4).

Learn more in:

https://brainly.com/question/1048150

How does a fungus get food?

Question 1 options:

both autotroph and heterotroph


Neither. It doesn't eat!


autotroph


heterotroph

Answers

Answer:

They are Heterotroph as they cant make their own food and have feed of dead things of decomposing.

1. Choose the items that are Inferential Statistics. (Check all that apply)
Give the likelihood of data occurring by chance
Include the mean
Summarize the data
Tell you whether to call your mother about your results
Give a measure of statistical significance

Answers

Answer:

A, D, and E is correct

Explanation: I took the test and got this one correct.

The items that are inferential statistics among the options would be:

Give the likelihood of data occurring by chanceTell you whether to call your mother about your resultsGive a measure of statistical significance

This is largely due to the fact that inferential statistics refer to the branch of statistics that draws conclusions from a set of data. It is as opposed to descriptive statistics which focus on summarizing, describing, arranging, and or categorizing data in such a way that trends are shown at a glance.

Statistical parameters such as mean, mode, and median only measures attributes of data relating to the measure of central tendencies. Data summary is purely descriptive

Hence, the items selected are those that are conclusive and not descriptive.

More about types of statistics can be found here: https://brainly.com/question/1135243

HELP ASAP!!

Which scenario is an example of an environmental problem becoming an
economic problem?
O A. Excessive pollution decreases a community's access to affordable
clean water.
O B. Destruction of habitat reduces a population of animals in a remote
ecosystem.
O C. Deforestation creates farmland that allows a community to
produce more crops.
O D. Excessive manufacturing of a product reduces demand in a
saturated market.

Answers

Answer: A, excessive pollution decreases a communities access to affordable clean water.

Explanation: ap3x

Answer:

O A. Excessive pollution decreases a community's access to affordable

clean water.

Explanation:

Above answer is absolutely correct! I just want to assure you :)

Some cells contain two copies of each chromosome, and some cells contain only one copy of each chromosome. Which types of cells contain two copies of each chromosome?

Select all that apply.
A. egg cell
B. skin cell
C. body cell
D. blood cell
E. sperm cell

Answers

Body cell and sperm cell

The type of cell that  contain two copies of each chromosome should be considered as the sperm cell and the body cell.

What is a chromosome?

It is considered as the thread-like structures that should be located inside the animal or plant cells nucleus. Each and every chromosomes should be made of protein and the individual molecule of DNA.

Therefore, The type of cell that  contain two copies of each chromosome should be considered as the sperm cell and the body cell.

Learn more about chromosome here: https://brainly.com/question/17599295

If you rescue a snake and give them a home in your house will that cause them to not shed? And why!! Very important. Will mark brainless!!!

Answers

No snakes shed there skin when they grow it will eventually shed

A reaction that absorbs energy from the environment a reaction that requires an activation energy a reaction that releases energy into the environment a reaction that does not involve a change in energy

Answers

Answer:

Endothermic reaction

Explanation:

An endothermic reaction is a chemical reaction that takes energy from the atmosphere. It requires activation energy.  An exothermic reaction is the reverse of an endothermic reaction. Reversible reactions are where the compounds will react to the initial reagents.

Why is it important for the new cell that the two new double helices are identical to each other?

Answers

DNA must replicate (copy) itself so that each resulting cell after mitosis and cell division has the same DNA as the parent cell. All these cells, the parent cell and the two new daughter cells, are genetically identical. ... The two single strands of DNA then each serve as a template for a new stand to be created.

HELPPPP!!!! ASAPPPP!!!!!

What are all of the functions of water in the body? (Nutrition Lesson)

Answers

Answer:

Protects body organs and tissues. Carries nutrients and oxygen to cells. Lubricates joints. Lessens burden the on kidneys and liver by flushing out waste products.

Explanation:

Organize the steps of primary succession to describe how the empty rock
landscape transformed into mature forest communities.
First
1
Rock is broken down and converted into soil
N
Lichen and other pioneer species grown on the rocks
3
Small pine trees grow in the soil
4
Grasses and flowering plants grow in the soil
5
The glacier retreated, leaving barren only rock
6
Shrubs and small trees grow in the soil
7
::::
A climax community develops
Last

Answers

Answer:

A climax community develops

The glacier retreated, leaving barren only rock

Lichen and other pioneer species grown on the rocks

Rock is broken down and converted into soil

Grasses and flowering plants grow in the soil

Shrubs and small trees grow in the soil

Small pine trees grow in the soil

Explanation:

hope its correct can i get brainliest i spend a lot of time on it

Francis grew some plants for a science experiment. The sketch of his experiment after several days is shown. Which tropism is Francis most likely investigating?

Answers

The correct answer to this open question is the following.

Unfortunately, you did not provide the sketch or the photo that shows what Francis is doing. So we do not know what you are talking about.  

However, trying to help you, we did some deep research and can comment on the following.

If the photo shows a plan under the light of a lamp, moving towards the lamp direction, then tropism is Francis most likely investigating is phototropism.

To better understand the concept, Tropism is the movement of a plant towards the direction of an influence exerted on it. This means that an external factor is introduced in order to make the plant grow through an external influence.

So when we use the term phototropism, this means that the plant responds to the direction of the source of light and grows in that direction. That is what Francis is using in his science experiment.

Answer:

phototropism

Explanation:

if you want an in depth answer, look at the other one, not mine lol! (I attatched the image)

10. In a bacterial cell, which structure allows the cell to move through fluid?
A flagella
B pili
C nucleoid
D ribosomes

Answers

Answer:

a, flagella. they allow cells to swim

A. Flagella vuvvuvugivivufxyyfyx

DNA strand: 5' GGC TAG ATC GGA TCA 3
mRNA strand:
Protein (amino acid chain):
Pls help

Answers

mRNA: ccg auc uag ccu agu
Amino acid: pro-ile -stop-pro-ser

PLEASE HELP!!! Asapp

Answers

Answer:

B

Explanation:

Its the same

It’s B.................

How does reproductive isolation affect the gene pools of two or more populations?

Answers

How does reproductive isolation affect the gene pools of two or more populations? ... These changes may prevent individuals from each population from being able to mate successfully with each other. If this happens, the two populations are considered to be distinct species. I hope this answer helps you out. Have a great rest of your day. ☺️
These changes can prevent individuals from being able to successfully mate with one another from each population. If this occurs, it is considered that the two populations are distinct species.

HELPPPPPP.......30 points DONT ANSWER IF YOU'RE NOT GOING TO HELP I WILL REPORT YOU
The image shows a lake, a factory, a cloud in the sky, a cow, dead organisms, a tree, and the sun. An arrow from the sun to the tree is labeled A. An arrow from the sky to the tree is labeled B. The sky is labeled C above the cloud. The letter D is in the air and an arrow points from it down to dead organisms. An arrow points from dead organisms to the ground labeled E. An arrow points from the cow into to the sky labeled F. An arrow points from the factory to the sky labeled G. An arrow from the sky to the lake is labeled H above the lake.


Using the diagram above, match the description to the corresponding location in the carbon cycle model. Provide the letter only.

Carbon dioxide is converted to sugar used for food.
Carbon trapped in fossil fuels is converted to carbon dioxide.
Organic carbon is converted to fossil fuels.
Carbon dioxide is converted to carbonates.
Sugar is broken down and converted to carbon dioxide.
Location ________
Location ________
Location ________
Location ________
Location ________

Answers

Answer:

A - 1. Carbon dioxide is converted to sugar used for food (this is process of phosynthesis).

G - 2. Carbon trapped in fossil fuels is converted to carbon dioxide (this is combustion of fuel).

E - 3. Organic carbon is converted to fossil fuels.

H - 4. Carbon dioxide is converted to carbonates.

F - 5. Sugar is broken down and converted to carbon dioxide (this is breathing).

Explanation:

hope this helps

Which of the following is not a function of the skeletal system?
A.
provides a framework for the body
B.
provides protection for internal organs
C.
movement of bones
D.
production of new blood cells

Answers

Answer:

C

Explanation:

The skeleton relies upon the contraction and relaxation of muscles which are attached to bone in order to move. The muscular system is made up of three types of muscle, one of which is responsible for the movement of bone. To add to the confusion, the relationship between both muscles and bones is often lumped together as the musculoskeletal system, but to be sure, they are unique in their own ways.

In summary, bones can't move on their own, and therefore movement cannot be the skeletal system's function.

Under identical conditions, which surface will reflect the greatest amount of insolation?

Answers

Answer:

Earth's surface

Explanation:

Will be receiving the greatest amount of isolation

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Joanna plans to completely cover a large soup can,including the top and bottom, with black paper. Thediameter of the can is 6 in. and the height is 5 in. Which is areasonable estimate for the number of square inches ofpaper that Joanna will need to cover the can?Select one:101 square inches151 square inches1.319 square inches141 square incheswe Which founding belief was inspired by the Magna Carta?A. rule of lawB. Representative democracy C. Divine right of kings D. Natural law 2. Which statement is not true in the equationy = 0.5x?A. The value of y is one-half times the value of x.B. The equation represents an additive relationship.C. The value of y is 4 when the value of x is 8.D. The equation represents a multiplicativerelationship. Many people in our town go to the fair each year.The under lined phrase in the sentence functions as a(n)(The underlined phrase is Many people in our townIs the underlined phrase) 1. Adverb2. Adjective3. Pronoun4. Noun 2. Which amendment protects you against an unreasonable search andseizure? -A 2nd AmendmentB. 3rd AmendmentC. 4th AmendmentD. 5th Amendment Please can someone help me... P=-30h+74 The variable h represents the number of hours he has spent reading, the variable p represents the number of pages left to read. How many hours of reading will Ethan have to do in order to have 14 pages left to read? Which situation is BEST modeled by a linear function? A) The value of a new automobile that depreciates 20% each year. B) The size of a culture of yeast that doubles in size every 20 minutes. C) The amount an investment is worth when earning 7.2% compounded yearly. D) The amount of interest earned for a year on a savings account earning 5.5% simple interest. Marie is a scientist, and she understand that knowledge changes in the face of new evidence. Marie is demonstrating a core attitude in science, which is What might have made the movement of the Cherokee less terrible?O A. Moving during a different time of yearO B. Planting white roses along the trail traveledO C. Choosing a woman to be the principal chiefO D. Being allowed to keep the gold found in Georgia What is the solution to the equation? 14g = 154 A. 5B. 11C. 140D. 2,156 Which part of the plant cell provides protection and structural support Which BEST describes the type of bonding that occurs in potassium chloride (CI)?mostly ionicO mostly covalentmetallic and ionicO metallic and covalentASAP quick A scientist measured the growth rate of an apple tree at 10 inches in 5 weeks. What is the growth rate of the apple tree? (in inches/week) How many moles of carbon tetrabromide are present in 5. 27x10`22 molecules of the compound Write the equation for the function g(x) if the parent function f(x) is translated 3 spaces to the right and 2 spaces up. How do wind and water change rocks over time?1. They add minerals to the rocks2. They change the shape of the rocks3. They increase the mass of the rocks4. They build up the rocks with small sand particles An architect is creating a scale model of a building with a rectangular base. The ratio of thebuilding's base length to the scale model's base length is 110 in : 3 in. If the length of the baseof the scale model is 9 inches (in), what is the length of the base of the building to the nearestfoot?Answer: true or false: the United states of America's takeover of Hawaii and Alaska would be an example of imperialism Misty runs out of gas 2 blocks from 3 gas stations. She is running late for a hair appointment that was scheduled for 10 minutes ago. Her tank can hold 12 gallons. She has $85, but needs to also use it for her hair appointment. Gas station A has free car service to wash windows and charges $2.67 per gallon. Gas station B charges $2.60 per gallon with no extra services. Gas station C has free air and charges $2.62 per gallon. What is the cheapest cost to fill Misty's tank?