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aleksandrvk [35]
2 years ago
14

Which description best characterizes a mass extinction?

Biology
2 answers:
Leona [35]2 years ago
6 0
A because it’s a large amount in a short amount of time.
vlada-n [284]2 years ago
4 0
A does because it’s a large amount.
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Which of the two systems works 24/7 and protects you regardless of the organism it encounters?
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Answer:

non-specific system

Explanation:

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A researcher synthesizes a new molecule called inhibitor X that inhibits the activity of phosphofructokinase (PFK), the enzyme t
Oduvanchick [21]

Answer : The dissociation constant of the PFK‑inhibitor complex is, 5 µM

Explanation :

The expression for reversible competitive inhibition when apparent Km affected by addition of the inhibitor is:

K_m_a=K_m[1+\frac{I}{K_i}]

where,

K_m_a = apparent value = 52 µM

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Now put all the given values in the above formula, we get:

52\mu M=40\mu M[1+\frac{1.5\mu M}{K_i}]

K_i=5\mu M

Therefore, the dissociation constant of the PFK‑inhibitor complex is, 5 µM

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Which differentiates the key chemical properties of nucleic acids, DNA and RNA?
Sergeeva-Olga [200]
<span>Hydrocarbon structure</span>
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Where are all lemurs find
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