Biology High School

In order for natural selection to occur, there must be variation within the population. Which statements are an accurate reflection
of the relationship between natural selection and variation in the population? Select ALL that apply.
A)
Mutations are caused by natural selection.
B)
Mutations are a source of variation within any population.
Genetic variation is increased in populations with sexual reproduction.
D)
Genetic diversity is decreased overall by the mechanism of natural
selection
E)
Natural selection lowers the population size but maintains the genetic
variation in a population.

In Order For Natural Selection To Occur, There Must Be Variation Within The Population. Which Statements

Answers

Answer 1

Answer:

the correct answer is b, c, d

Explanation:

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Answer 2

The correct answer is (B) and (C)

What are Mutations?

Mutation is a change in the DNA sequence in any organism.Mutation will cause the formation of new nucleotide sequence resulting in genetically diverse population.

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Related Questions

A) If a female spinach plant with green (GG) leaves is crossed (pollination and fertilization occur) with a male spinach plant with purple (gg) leaves. What are the genotypes of the offspring and what traits will they express including the probability or ratio.

Answers

Answer:

The genotype Ratio is 1. All are Gg.

The phenotype is all Green spinach

Explanation:

Punnett Square:

    G                G

    _________________

g   |   Gg         |     Gg          |

    |________|________  |

g   |    Gg        |     Gg          |

    |________|________  |

The genotype Ratio is 1. All are Gg.

The phenotype is all Green spinach

When does the body make most of its nerve cells

Answers

Answer:The target cells of neurons include other nerve cells in the brain, spinal cord, and autonomic ganglia, and the cells of muscles and glands throughout the body.

Explanation:please give braineest

Answer:

A nerve is formed by a bundle of many neurons. Neurons develop from the neural tube of the early embryo and in many animals continue development until sometime after birth. The development of motor neurons that have elongated axons is best understood. These cells are derived from tissue on the ventral side of the neural tube.

Explanation:

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Answers

Answer:

looks great!

Explanation:

Answer:

it looks great sorry

Explanation:

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Chapter 21.1 Review
1. What characteristics of living things do viruses have?

2. Compare and Contrast How is viral reproduction different from that of cell-based organisms?

Answers

Answer:

1. Living characteristics of viruses include the ability to reproduce – but only in living host cells – and the ability to mutate.

2.Viruses cannot reproduce independently; cell-based organisms can reproduce independently.

What are the 3C’s that plant cells have, but animal cells lack?

Answers

Answer:

Cell wall, Chloroplasts, Central vacuole

Explanation:

Answer: cell wall,  chloroplast, central vacuole,

Explanation:

Describe an adaptation to a plant's life cycle and explain how this adaptation helps the plant survive. Source StylesNormal

Answers

Answer:

The adaptation of a plant in an environment ( for example,desert) depends on the structural parts of the plant which enables it to complete it's life cycle.

Explanation:

Plants are found in different types of environment. They need to possess and show some features that will enable them to live successfully and reproduce in that particular environment. Such features may be structural, functional or behavioural which are known as ADAPTATIONS.

Furthermore, in environment where there is scarcity of water supply, plants known as xerophytes can survive or thrive. They show the following adaptations:

--> well developed roots: the roots grow down to great depths if necessary and branch extensively in order to absorb water from as large an area as possible.

--> presence of swollen stems: These stems contains water storage cells which are called succulents. They help the plant withstand long period of drought.

--> Reduced leaves: This helps in reducing water loss from leaves through transpiration. For example in plants like the cacti, the leaves are reduced to spines.

Therefore, these structures helps the plant survive in its present environment.


28. Eubacteria can be distinguished from archaebacteria by
a.The presence of a true nucleus
b. Being multicellular
Difference in the makeup of cell wall
d. The presence of organelles

Answers

Answer: D

Explanation:

i am sorry if this is wrong

The tendency of a cell or an organism to maintain a stable internal environment is known as _______.
A.
homeopathy
B.
homology
C.
homogeneous
D.
homeostasis

Answers

Its D. Homeostasis not the others
It D homeostasis is the answer

Vacuoles are cellular organelles that are found in all plant and fungal cells. In plant cells, vacuoles tend to store large amounts of water, so they can push outward on cell walls and help keep plants upright. In fungal cells, vacuoles often store materials that are toxic to the cell.

According to the above information, how do vacuoles help fungal cells maintain homeostasis?
A.
by storing large quantities of water
B.
by allowing the cells to get rid of waste
C.
by producing more cellular organelles
D.
by helping the cells extract energy from food

Answers

Answer:

D. by helping the cells extract energy from food

Explanation:

Fungi are decomposers so they normally need some sort of food to grow. To get the energy to grow, they extract it from the food. Fungi will get their energy from dead animals, dead plants, etc.

. ___________________ is the process of plants releasing oxygen into the environment?

Answers

Answer:

photosynthesis

Explanation:

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Tongue rolling is a dominant trait. Explain why it is possible for both parents being able to roll their tongue but their biological child is not able to do so.

Answers

The parents are heterozygous so when they have a kid they got the ressesive trait so they can’t roll there tongue

Answer:

The answer is 0 ( AKA A )

Explanation:

Parents form the same type of gene, which is Rr. Since all the genes are the same, there can not be a chance that the offspring can not roll the tongue. Next time focus on your work!! :3

According to catastrophists what was the rate of geological change?

Answers

Catastrophism is the theory that the Earth has largely been shaped by sudden, short-lived, violent events, possibly worldwide in scope.[1] This is in contrast to uniformitarianism (sometimes described as gradualism), in which slow incremental changes, such as erosion, created all the Earth's geological features. The proponents of uniformitarianism held that the present was the key to the past, and that all geological processes (such as erosion) throughout the past were like those that can be observed now. Since the early disputes, a more inclusive and integrated view of geologic events has developed, in which the scientific consensus accepts that there were some catastrophic events in the geologic past, but these were explicable as extreme examples of natural processes which can occur.

Which of the following contribute to dirty air?

Select three options.

• photosynthesis

• fossil fuels

• smoking

• mold

• respiration

Answers

Answer:

Fossil Fuels, smoking, mold

Explanation:

Answer: Fossil Fuels, smoking, mold

Explanation: On Edge!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Which of the following is defined as the ability to be changed or change according to circumstance

Answers

Answer:

flexibility

Explanation:

In order for geothermal energy to be produced efficiently, the geology of the area needs high subsurface _______
A. Depth
B. Pressure
C. Salinity
D. Temperature

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Answers

Answer:

D. Temperature

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This was a hard one for me but i do think it’s D.temperature

Who formulated the Universal law of Gravitation (G)​

Answers

Answer: Isaac Newton

Explanation: Sir Isaac Newton put forward the universal law of gravitation in 1687 and used it to explain the observed motions of the planets and moons

Which of the following accurately describes how environmental pollution can cause a
non-transmissible disease?
People who are exposed to photochemical smog in "gray-air cities" are at risk of developing
pneumonia.
People who are exposed to increased levels of tropospheric ozone are at risk of developing
skin cancer.
People who eat animals in which toxins have bioaccumulated are at risk of contracting
malaria.
People who are exposed to asbestos particles are at risk of developing respiratory
infections.

Answers

Answer:

B

People who are exposed to increased levels of tropospheric ozone are at risk of developing skin cancer.

Explanation:

Which group of fungus convert sugar to alcohol

Answers

Answer:

yeast

Explanation:

yeast are another group of fungi important for both food and beverage fermentation the process that converts sugars into alcohol and carbon dioxide

Which option describes a mass extinction?
А.
a large meteorite hits the Earth; many species rapidly disappear from the fossil record
B. the amount of sunlight on Earth Increases; organisms of a single species increase in number
C. glaciers cover the Earth; many species rapidly increase in number and take over
D
a small volcano explodes; organisms of a single species disappear

Answers

A you better mark me branliest
The answer is A! A mass extinction is where many species die at once.

What evidence would be crucial in a forensic anthropologist's investigation?

bruised muscle around one shoulder
several bone fragments located at the back of the head
the name of the person who inflicted to injury
the pool of blood under the body

Answers

several bone fragments located at the back of the head

What happens when the sun emits more energy than normal

Answers

Answer: When the Sun emits more amount of energy than normal, "Solar flares and sunspots" occur, increasing temperature of Earth. Explanation: The Earth's temperature is governed by many factors

HOPE THIS HELPS

Mitosis is responsible for growth, repair, and maintenance in an organism because

Answers

Answer:

Explanation:

This is because mitosis produce two daughter cells that are genetically identical to each other thereby producing new cells that are particular to different tissues thereby making it to grow. These new cells that are genetically identical replaced the old or damaged cells , it's repair and also help in healing process.

Once anything passes through the event horizon, from the perspective of that
object, nothing would change.

True or false

Answers

Answer:

True

Explanation:

The event horizon of a black hole is where gravity is such that not even light can escape. This is also the point I understand that according to Einstein time dilation will be infinite for a far-away-observer.

The statement "once anything passes through the event horizon, from the perspective of that object, nothing would change" is true.

What is horizon?

The horizon would be the line that appears to divide a celestial body's ground from its own sky when observed by an observer standing on or close to the body's surface.

What is event?

An event would be the collection of results from an experiment.

Therefore, the statement "once anything passes through the event horizon, from the perspective of that object, nothing would change" is true.

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Explain the difference between herbivores, carnivores and omnivores​

Answers

Answer:

Herbivores are organisms that eat plants only. Carnivores are organisms that eat other animals only (meat). Whereas, omnivores are organisms that eat both plants and animals.  

hope this helps and is right. p.s. i really need brainliest :)

Animals that eat plants exclusively are herbivores, and animals that eat only meat are carnivores. When animals eat both plants and meat, they are called omnivores. ... These carnivores may eat insects and worms. Carnivorous animals have strong jaws and sharp teeth to enable them to tear and rip prey.

The DNA sequence CAT would be transcribed into which mRNA codon?

Answers

it would transcribe into GUA

Answer:

GUA

Explanation:

Hello There!

These are the base pairs for transcription

IMPORTANT

when transcribing; Adenine transcribes to Uracil not Thymine

so it would be

Adenine to Uracil

Thymine to Adenine

Cytosine to Guanine

Guanine to cytosine

so we want to find the mRNA codon of the dna sequence CAT

Cytosine to Guanine (G)

Adenine to Uracil (U)

Thymine to Adenine (A)

your answer is GUA

15. Cells found in plants and animals have similarities but can differ in function. Consider the following two organisms: a corn plant cell (Zea mays) and a camel cell (Bactrianus ferus). What is the best explanation for the difference in the cellular vacuole size between these two biotic organisms?

A. The corn cells' have a small vacuole size because it does not need long term water and
electrolyte storage.

B. The camel cells' have a small vacuole size because it does not need long term water and electrolyte storage.

C. The camel cells' have a small vacuole size because it is not in contact with toxins that need to be removed from the cell.

D. The corn cells' have a large vacuole size because it is in contact with many toxins in the soil which need to be removed from the cell.

Answers

The best explanation for the difference in the cellular vacuole size is option d. The corn cells' have a large vacuole size.

Explanation to the difference in the cellular vacuole size:

When there is the difference in the vacuole size that lies between the two biotic organism so it is due to the corn cells that contain high vacuole since they are in contact with various toxins in the soil that need to be eliminated from the cell.

hence, the correct option is d.

And, the rest of the options are wrong.

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How do toothed whales produce general communication sounds?

Answers

Answer:Toothed whales do not make the long, low-frequency sounds known as the whale song. Instead they produce rapid bursts of high-frequency clicks and whistles. Single clicks are generally used for echolocation whereas collections of clicks and whistles are used for communication.

Which of the following is not included in a bill of sale.

A) A detailed description of the item

B) The make, model, and color of an item

C) A specific set of rights to the buyer

D) Signatures of both parties

Answers

i believe it would be c. everything else on the list is mandatory

Which of the following is an example of a benefit of a flooded river?

A. Burial and uprooting of plants

B. Removal of leaves from tall trees

C. Deposition of nutrients in the surrounding soil

D. Decreased formation of habitats for organisms

Answers

C. It helps to reduce sediment loads. It helps to deposit nutrients into the surrounding soil

a 30 rock cut cave monuments famous for its murals



Ineeditnow​

Answers

Answer:

Ajanta Caves

Explanation:

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