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Pepsi [2]
4 years ago
12

How a seashell becomes a fossil

Biology
1 answer:
Lynna [10]4 years ago
5 0
If the shell or bone is buried in sediment, it dissolves more slowly. Shells are preserved without being dissolved only when they are buried in sediments that consist of calcium carbonate minerals, like limestones. ... The most common fossils are shells of marine animals like clams, snails, or corals.
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In response to a drop in overall blood pressure, __________ stimulates constriction of the glomerular inlet and even greater con
Lady bird [3.3K]

According to the research, angiotensin II (A) stimulates constriction of the glomerular inlet in response to a drop in overall blood pressure.

<h3>What is angiotensin II?</h3>

It is a potent vasoconstrictor derived from the effect of angiotensin converting enzyme on angiotensin I.

It acts directly on the arterioles and by stimulating the secretion of aldosterone; for example, it increases extracellular volume and peripheral vascular resistance.

Therefore, we can conclude that according to the research, angiotensin II (A) stimulates constriction of the glomerular inlet in response to a drop in overall blood pressure.

Learn more about angiotensin II here: brainly.com/question/13397581

#SPJ1

3 0
2 years ago
How do metabolic pathways keep from reaching equilibrium?
wlad13 [49]

Answer:

The metabolic chemical reaction is reversible, and they too would attain equilibrium if they take place in a test tube separately. However, if a cell attains metabolic equilibrium it is considered as dead. Thus, a cell in the body is not in equilibrium.  

The spontaneous flow of substances within and outside of the cell prevents the metabolic pathways from attaining an equilibrium, and the cell persists to perform the work all through its life. This principle is demonstrated by the open hydroelectric system.  

5 0
3 years ago
What's the new peptide chain when the new DNA segment is translated?
saveliy_v [14]

Answer:

The correct answer is - Methionine, serine, histidine, aspartate, glycine

Explanation:

The new segment of DNA is: 3'-TACAGGGTGCTACCCACT-5', which performs two processes to form a peptide chain, transcription, and translation. In transcription, the DNA segment is encoded to an mRNA molecule which has its complementary sequence to DNA sequence.

New DNA strand: 3'-TACAGGGTGCTACCCACT-5'

mRNA sequence: 3'-AUGUCCCACGAUGGGUGA-5'

The translation of this mRNA would be on the basis of chart

AUG - Methionine (start codon)

UCC - serine

CAC - histidine

GAU - aspartate

GGG - glycine

UGA -  stop codon

The peptide chain would be - Methionine, serine, histidine, aspartate, glycine

5 0
3 years ago
Help appreciated! Compare and contrast critical thinking and an inference.
pshichka [43]
<span>Critical thinking and inferences are both ways to come to a conclusion or decision. Both are used in everyday life to come to a decision about a particular situation. An inference is more similar to an assumption though. You don't spend as much time considering all aspects of the situation. An inference is more of a quick decision. When you engage in critical thinking, you consider all aspects of the decision. Critical thinking would take more time.</span>
6 0
3 years ago
What did the purple sea stars help to do on Tatoosh Island?
Mama L [17]

Answer:

"In the 1960's, the purple sea star was one of the first species recognized as a keystone. Its presence keeps tide pools in balance and prevents mussels from taking over the ecosystem."Explanation:

8 0
3 years ago
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