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Nostrana [21]
2 years ago
12

What are two ways scientists use evidence of past environments preserved in

Biology
1 answer:
Burka [1]2 years ago
3 0
The answer is D, I just did the test
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Please help pleaseeeeee
charle [14.2K]

Answer:

a

Explanation:

the bright colors saves as a warning to predators

8 0
2 years ago
Cystic fibrosis is an example of a genetic disease caused by the deletion of a nucleotide. what is the term for this type of mut
Molodets [167]
This is called a frameshift mutation....

Losing one nucleotide would cause the entire framework of codons (the 3 nucleotide set that codes for the amino acids) to move off by 1 which results in likely completely different amino acids being called for when the protein is built. 

In the case of CF, the normal CFTR gene which codes for Cystic Fibrosis Transmembrane Receptor - a membrane protein, with a point mutation would not be made properly and is therefore not placed into the membrane of the cells of the offspring - this protein is very important in moving sodium into the cell - if this is messed up it results in disease.

Note that CF can result in a number of different types of mutations to the CFTR gene...a frameshift mutation is just one way.
8 0
3 years ago
Members of the phyla Cnidaria and Bryozoa both have a circle of tentacles, which they use for feeding. Besides the difference in
Sophie [7]

Answer:

C.  Cnidarian tentacles have stinging cells, but Bryozoan tentacles are covered with cilia.

Explanation:

Cnidaria and Bryozoan, both teh phylum are classified under kingdom Animalia that contain aquatic animals found both in freshwater and marine environments.

They both use tentacles for feeding but there is diffference between there tentacles and feeding process.

Cnidarians tentacles are conist of stinging cells in the tips, which are called cnidocytes and a coiled thread-like stinger, called nematocyst. These stinging cells and nematocyst helps to capture and subdue prey. They feed over plankton or animals larger then them.

Bryozoan tentacles are covered with cilia and form an "O" or "U" shaped fold called lophophore, which helps to feed by sweeping the surrounding water. They generally feed on plankton, nudibranchs (sea slugs) and sea spiders.

Hence, the correct option is C.

8 0
2 years ago
What would be the best diet to your knowledge?
Svetlanka [38]

Answer:

just fruits added with whatever you like.

fruits most importantly

4 0
3 years ago
Read 2 more answers
Plant Cell
Kipish [7]

Answer:

all left go left all middle go middle all right go right

4 0
2 years ago
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