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SOVA2 [1]
3 years ago
12

What invertebrates only live in salt water?

Biology
1 answer:
Step2247 [10]3 years ago
4 0

Answer:

echinoderms

Explanation:

echinoderms are a group of aquatic invertebrates but they are only found in salt water

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Why is the triceps brachii muscle sometimes called the boxer's muscle?
Sav [38]
It is the muscle that is most used in boxing of course!

Hope this helped!
8 0
3 years ago
Which is not included in the partnership-based approach to conservation of the US fish and wildlife service?
Westkost [7]

Answer:

Consultation.

Explanation:

Consultation is not included because there is no need for it in US fish and wildlife service. Cooperation, communication and contemplation are needed in order to conserve the US fish and wildlife service in a good manner. Cooperation is required in order to fulfill the common goal and communication between different departments is also necessary. contemplation refers to examination and inspection which is very important for achieving the goal.

6 0
2 years ago
what molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species
AleksandrR [38]

Ans.

Protein synthesis involves formation of proteins, during which information present in DNA is used to make polypeptide chains. Hence, amino acid sequence of a polypeptide chain is determined by the sequence that may differ in different species having proteins with same amino acid sequence.

Thus, the molecules that are used to compare different species with proteins having exact same amino acid sequences are DNA molecules.

Protein synthesis includes two steps, transcription and translation. During transcription, DNA gets converted into RNA by RNA polymerase enzyme, while during translation, RNA provides information to make proteins.

In RNA information is present as triplets of nucleotides, known as codon. Each code codes for a specific amino acid. There are a total of 64 codons, while number of protein-forming amino acids is 20. Hence, one amino acid can be coded by more than one codon and this property of codons is known as degeneracy of codons.

Thus, two species may have the same protein even if their DNA molecules are different because of degeneracy of codons.

7 0
2 years ago
BIOLOGY DNA SECTION 1
vekshin1

1. to ensure continuity and preservation of genetic material.

2.semi conservative

3.a DNA polymerase : unzip the DNA strand.

b Helicase : unwind dna strand

4.during the s stage of interphase

5. Nucleus

7 0
3 years ago
A sun and plant. An arrow pointing to the leaf is labeled A. The sun rays are labeled B. Arrows pointing away from the leaves ar
stiv31 [10]

Answer:

When the arrow is risen as the sun rays also because the shift of day to night

Explanation:

Plant

8 0
2 years ago
Read 2 more answers
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