BIOLOGY HIGH SCHOOL

Which of the following is most likely an example of genetic drift resulting from the founder effect? a. The species’ physical habitat is limited. b. The population expresses a mix of dominant and recessive traits. c. The species occupies a small, specific niche. d. A population commonly expresses traits that are otherwise rare in the species.

Answers

Answer 1
Answer: An example of genetic drift resulting from the founder effect, of the available answers listed below, would most likely be a situation in which a population commonly expresses traits that are otherwise rare in the species. An example of this might be an animal with longer limbs than other members of the same species - there have been real-life examples of this studied with lizards.
Answer 2
Answer:

The person above is basically saying D

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When an object is burning, two atoms of oxygen (in the air) combine with one atom of carbon (from thesubstance burning). This forms carbon dioxide gas. Explain how the law of conservation of matter applies to

this reaction.

2. A piece of wood is burned, and a small amount of ashes are formed. Explain why the original piece of wood

and the resulting ashes will not weigh the same.

Answers

1. The law of conservation of mass applies to this reaction because when you look at its balanced chemical equation, the same amount or ratio of elements can be found:

C + O2 --> CO2

This shows that the product will have the same ratio of reactants.

2. The original piece of wood and resulting ashes do not weight the same because the combustible parts of the wood were burned and converted to gases. This means that the missing mass is equal to the gases produced. The remaining ashes are the incombustible parts of the wood.

A seed that is alive is called?

Answers

a tree is a living seed.

Which of the following are not biotic factors in a terrestrial ecosystem?a. herbivore population
b. plants
c. rivers
d. soil bacteria

Answers

Answer:

The correct answer is option c: rivers

Explanation:

Hello!

let's solve this!

In an ecosystem, the biotic factors are those that have life, that is, living beings.

Instead, abiotic factors are those that have no life.

Let's analyze each of the options:

to. herbivore population: they are living beings so they are biotic factors

b. plants: they are living beings, then biotic factors

c. rivers: they are not living beings, they are abiotic factors

d. soil bacteria: they are living beings so they are biotic factors.

We conclude that the correct answer is option c: rivers
letter C , Rivers because it is an abiotic factor.............

hope its help...
erjay

A change in the natural sequence of bases in DNA structure is called a

Answers

A change in the natural sequence of bases in DNA structure is called a mutation.

  • The mutations are responsible for altering the nucleotide sequence of the DNA and can be caused due to several reasons which can be physical, chemical or intrinsic factors.
  • The effect of these mutations on the organisms can be positive (beneficial), negative (harmful) or neutral (no effect).
  • The mutations can be broadly classified into 2 categories based on the change produced in the nucleotide sequence :

1. Pointmutation - This mutation result in the change of single nucleotide in the given DNA sequence. For e.g in a sequence AGGAATC if G changes to C the new sequence would be ACGAATC and this is called a point mutation.

2. Frameshiftmutation-This mutation refers to the alteration of the open reading frame of a sequence due to insertion or deletion of several nucleotides in a sequence for e.g if you have a sequence AAATTGG and there is a deletion of AATT  you get AGG. This is an example of a frameshift mutation.
The term that you are looking for is a mutation a change in the base code of DNA (deoxyribonucleic acid)

Which organelle is labeled A?
A.nucleus
B.vacuole
C.ribosome
D.mitochondrion

Answers

Correct answer: B) Vacuole

Vacuoles are the membrane bound structure found in the plant including algae and in some fungi that function to provide structural support and also serve as a site for storage, and waste disposal for the plant.

They do not have a fixed size or shape, plant cell can changed them according to their need.

It tend to be the largest organelle of the plant cell. It also function to maintain the internal pressure required withing the plant cell to provide structure and support to the growing part of the plant.
B. Vacuole is here depicted

Why are complex carbohydrates better for storing energy than simple sugars are?

Answers

because it is harder to get the sugars out of complex carbohydrates and easier to get sugars out of simple sugars hence the name. 
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