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SCORPION-xisa [38]

3 years ago

15

Which of the following best describes why the sun is so important to us?

A. it quickly purifies air that becomes polluted B. It is the major source of energy on Earth.
C. Without it, all the water on Earth would evaporate.

1 answer:

Maurinko [17]3 years ago

3 0

I’d say B. Without the sun, the earth would freeze within days. The sun’s energy gives warmth to our planet.

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cual es la relacion que establecen los organismos de la comunidad de una laguna, un bosque,un desierto.

Svetllana [295]

<span>Uno vive en tierra seca y cálida, por lo que realmente no necesitan agua donde los animales del bosque necesitan agua más que los animales en el desierto.</span>

4 0

3 years ago

What is the main goal of the Pacific Region Coastal Program?

Karo-lina-s [1.5K]

Answer:

The right option is b. restore wetland and forest habitats

Explanation:

The Pacific Islands Coastal Program is a program that was established under the U.S. Fish and Wildlife Service’s (USFWS) Coastal Program in 1999. The main goal of the Pacific Region Coastal Program is to restore and conserve wetland and forest habitats. The program provides funding and support by organizing applied research to create improved restoration method, conducting environmental education programs and examining coastal organisms and their habitats.

<h2>Hope this helps! Please consider marking brainliest!</h2>

7 0

2 years ago

Read 2 more answers

Comparing amino acid sequences in proteins has been used to determine the relatedness of organisms. Below is a graphic that show

Tju [1.3M]

Answer:

A) Species A and E are more closely related than either species are related to species D.

B) Between A and B = 99.1%

Between species A and C =97.5%

Between species B and C = 97.3%

Similarity in amino acids sequence reflects similarity in DNA sequence

C) Species A and E are most closely related

D) Species A and E have the most similarity in amino acid sequence, and hence DNA sequence.

Explanation:

A) The amino acid sequences of the protein, keratin, in species A and D has a difference of about 19 whereas species A and E have a difference of only 1. Therefore, it means that keratin in species A and D will have differences in structure whereas between species A and E, they would have almost the same structure.

Also, species D and E have a difference of 20 in their amino acids sequence, therefore, the structure of keratin in both species will have differences in structure.

B) Similarity between A and B:

450 - 4 = 446

In percentage: 446/450 × 100% = 99.1%

Similarity between A and C:

450 - 11 = 439

In percentage: 439/450 × 100% = 97.5%

Similarity between B and C:

450 -12 = 438

In percentage: 438/450 × 100% = 97.3%

The sequence of DNA of species determines their amino acid sequences because information in DNA is transcribed to RNA which are then used to make proteins. Therefore, if a species are very closely related, they are expected to have very similar genetic sequences and thus proteins too. This is reflected in similarity between amino acid sequences in their proteins.

C). Species A and E are most closely related.

D) Species A and E have only a single difference in their amino acids sequence for Keratin. This translates to about 99.7% similarity which is the highest among all the species compared. Therefore, species A and E are most closely related.

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3 years ago

Fats that have been artificially hardened by hydrogenation to remain solid at room temperature are called

sattari [20]

The answer is Hydrogenated Fats

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Which statement explains a way that gymnosperm benefit from animals

miss Akunina [59]

The first person that answered is correct just to let you know!

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3 years ago