What is a gene? The different forms of a trait a segment of DNA that is

The San Marcos salamander, Eurycea nana, is a light reddish-brown translucent salamander about 2-5 cm in length. E. Nanais found

Scrat [10]

Complete question:

The San Marcos salamander, Eurycea nana, is a light reddish-brown

translucent salamander about 2-5 cm in length. E. nana is found only in

Spring Lake and a portion of the San Marcos River.

Which human activity would most likely decrease the ability of the

salamanders to survive?

The addition of a new food source into the river that limits competition for

resources

Tourism that helps fund the educational programs related to river ecosystem

conservation

Public transportation that reduces the number of automobiles that contribute to

pollution runoff into the river

Increasing water consumption that decreases the flow of clean water from the

springs that feed the river

Answer:

Increasing water consumption that decreases the flow of clean water from the springs that feed the river

Explanation:

In this question we are required to state the human activity that may likely cause the reduction in the survival rate of the salamander.

the first three options in the question are not the answer to this question. this is because options 1,2,3 would have positive impacts on the Salamander. these positive impacts would increase the ability of the salamander to survive and not decrease it as the question says.

the correct answer is the last option. that is the 4th option. because it has to do with decreasing the amount of water that flows in to the Salamanders habitat by human activities. if humans increase water consumption, then the flow of clean water would reduce. This would then have a negative effect on the Salamander.

6 0

3 years ago

Four structural domains of tRNA transcripts include the T loop, the D loop, the anticodon loop, and the

umka2103 [35]

Answer:

The correct answer will be option-B.

Explanation:

Transfer RNA or tRNA is the RNA molecule associated with the protein synthesis as it adds the specific amino acids to the nascent growing polypeptide.

The structure of the tRNA molecule resembles the shape of a clover leaf and is known as the clover leaf model. The structure contains hydrogen-bonded stems and associated loops. The stems include acceptor stem which posses CCA 3'-terminal group to attach amino acids. The anticodon loop contains an amino acid attachment site. T and D loop contains modified pseudouridine and dihydrouridine.

Thus, Option-B is the correct answer.

6 0

4 years ago

Which organism is an autotroph?

AnnyKZ [126]

Answer:

Not sure let me pull out my notes but seems good

Explanation:

7 0

3 years ago

Read 2 more answers

Analyze the pyramid representing the energy flow through an ecosystem. Select the phrases that accurately describe the flow of e

saveliy_v [14]

In a typical energy pyramid, herbivores have more energy available to them than carnivores, tertiary consumers are fewer than secondary consumers, and soil organisms recycle nutrients.

<h3>Energy pyramid in the ecosystem</h3>

The producer forms the bases of the energy pyramid of any ecosystem. this is followed by the primary consumers, secondary consumers, tertiary consumers, and quaternary consumers respectively.

The population at each trophic level decreases as we move up, resulting in a form of a pyramid. Also, the amount of energy obtained at each trophic level decreases as we move upward.

Thus, one can effectively conclude that:

Herbivores have more energy available to them than carnivores.
There are fewer tertiary consumers than secondary consumers.
Soil organisms recycle nutrients but not energy back into the ecosystem.

More on the energy pyramid can be found here: brainly.com/question/2515928

#SPJ1

3 0

2 years ago

To learn how different organisms might be related, scientists look for similarities and differences between the organisms. On th

tensa zangetsu [6.8K]

Answer:

To learn how different organisms might be related, scientists look for similarities and differences between the organisms. On the lines below, compare a cat and a frog. What physical features are the same? What physical features are different?

Cat and Frog are both vertebrates as they possess backbone.

Cat belongs to the family fenidae while frog belongs to the family bufonidae and their classes are mammals and amphibia respectively

Explanation:

7 0

3 years ago