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Leokris [45]
3 years ago
7

What can limestone deposits tell scientists about the environment in which the evolved?

Biology
2 answers:
Neko [114]3 years ago
5 0
The environment was a tropical ocean
Goshia [24]3 years ago
5 0
Limestone contains ancient organisms that contain information about the organism and what environment it has lived in. When compared to other similar species, one can find the changes from one organism to another
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Generally speaking, which of the following mutations.....? would most severely affect the protein coded for by a gene? -a base s
Svet_ta [14]
The answer is <span>a frameshift deletion at the beginning of the gene.

The frameshift deletion means that due to the deletion, the reading frame will be changed. Because of this, changed mRNA will be synthesized and translated into altered protein. It is known that codon is a triplet (a set of three nucleotides), that code for certain amino acid. The earlier in the sequence the deletion occurs, the protein will be more severely affected.
For example, if codons on RNA are THE BIG BAD DOG and the frameshift deletion happens on the first triplet (earlier in the sequence), the changed sequence will be  TEB IGB ADD OG. If </span>the frameshift deletion happens on the third triplet (later in the sequence), <span>the changed sequence will be THE BIG ADD OG.</span> This way, if the<span> frameshift deletion occurs at the beginning of the gene,</span> the more codons will be changed and in turn, they will code different amino acids.
7 0
3 years ago
Help pls il give brailist if correct
tangare [24]

Answer:

I believe that the answer is A.

Explanation:

This option makes the most sense because of the industrial and agricultural revolutions.

7 0
3 years ago
Which of the following statements is true about sensory cells in the gustatory system? Sensory cells migrate to the edge of tast
zloy xaker [14]

Answer:

Sensory cells last approximately two weeks and are renewed frequently.

Explanation:

7 0
3 years ago
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Ellen held a substance that is comprised of elements that have been chemically joined. The substance now has different propertie
anyanavicka [17]

Answer:

I'm going to go with a mixture sorry If this is wrong

Explanation:

8 0
2 years ago
If the grass contains 100,000 kcal of energy,how much energy will a fox obtain from eating a bird?
Karo-lina-s [1.5K]

Answer:

1,000 kcal

Explanation:

As a general rule, every trophic level only gains 10% of the energy from the trophic level.

So, the grass has 100,000 kcal of energy.  Assuming the bird eats grass, it only gets 10,000 kcal of energy.  Assuming the fox eats the bird, it only gains 1,000 kcal of energy.

3 0
3 years ago
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