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Lesechka [4]
2 years ago
10

Written-Response Question #1

Biology
1 answer:
kolbaska11 [484]2 years ago
7 0

The statement 'Karina says the change in the guppy population was caused by a mutation' is correct. Mutations change the frequency of phenotypic traits in a population across generations.

<h3>What is evolution?</h3>

The word 'evolution' refers to descendence with modification which especially happens due to the process of natural selection.

The mutations in the genetic material serve as raw material for natural selection and consequently for evolution.

In this case, Karina must be right because the change in the frequency of the phenotype can be caused by the emergence of beneficial mutations in individuals that live in a given environment.

These types of mutations (beneficial mutations) can fix and increase their frequency across generations.

Learn more about evolution and mutations here:

brainly.com/question/14438201

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What is one of the principal chemical compounds that living things use to store energy
arlik [135]

Answer:

<em>ATP</em> or <em>Adenosine triphosphate</em> is the chief compounds which are used by the living things to store energy.

Explanation:

<em>ATP</em> is the compound that captures the chemical energy released through the degradation of food. It <em>stores</em> the captured energy and <em>releases</em> it at the time of need experienced by the organism.

It is made up of adenine, ribose sugar, and a phosphate group. It is produced in a cell organelle called <em>mitochondria</em> through a process called <em>respiration</em>.

6 0
3 years ago
What are the defining characteristics of lobe-finned fishes?
ladessa [460]

Lobe-finned fishes are characterized by lobes in their fins in addition to the basic characteristics of fishes.

<h3>What are lobe-finned fishes?</h3>

Lobe-finned fishes are a group of fish known as Sarcopterygii. They possess the basic characteristics of fishes such as swim bladder, lateral lines, etc.

They are a sister group of ray-finned fishes. In addition, lobe-finned fishes possess the following characteristics:

  • lobed fins
  • enameled teeth

More on lobe-finned fishes can be found here: brainly.com/question/7849168

#SPJ12

3 0
2 years ago
A segment of RNA reads A U G U C C A C A. Use the codon table to determine what sequence of amino acids for the segment should b
lozanna [386]

Answer:

Met-ser-thr

Explanation:

Im good at this stuff xd

3 0
3 years ago
How does extracellular glucose inhibit transcription of the lac operon?
Genrish500 [490]

The extracellular glucose inhibit transcription of the lac operon (D) by reducing the levels of intracellular cAMP.

Lac operon is the assembly of various genes that are involved in the uptake and metabolism of lactose of E. coli or any other bacteria. It consists of a regulator gene, promoter gene, operator and structural gene. Structural genes are three: z, y and a. Each codes for a different enzyme.

cAMP is the cyclic Adenosine Monophosphate. It is produced by the bacteria when there are low levels of glucose in it. Hence it is also named as hunger signals. Therefore, cAMP is responsible for activating the operon to produce lactose.

To know more about cAMP, here

brainly.com/question/13794408

#SPJ4

3 0
2 years ago
If someone is a proven performance-enhancing drug user is eligible for the Hall of Fame in any of the major professional sports,
antiseptic1488 [7]
This is a issue of morality and ethics. So the answer to the first question depends on the perspective of the person. Personally I don't agree with performance enhancing drug use but I do think some of the expectations of athletes who perform in Olympic events increase the pressure to have to use them. So do I think people who use these drugs should be elected into the Hall of Fame. That is hard to answer. But I do not think using drugs takes away all of the achievement an athlete has made. It just proves that the athlete couldn't achieve the rigid sport performance without manipulation. But it doesn't mean they haven't worked hard or trained.

I do think rules should be made for athletes. These rules would definitely weave through most of the athletes we see doing these out of the world sport records every day. That is because many of them have been proven to have used these performance enhancing drugs.

Please vote my answer brainliest. thanks!
3 0
3 years ago
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