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scoray [572]
3 years ago
14

Three populations of crickets look very similar, but the males have courtship songs that sound different. What function would th

is difference in song likely serve if the populations came in contact?A) a temporal reproductive isolating mechanism.B) a behavioral reproductive isolating mechanism.C) a gametic reproductive isolating mechanism.
Biology
1 answer:
saw5 [17]3 years ago
4 0

Answer:

The correct answer will be option-B

Explanation:

A species is a group of similar organisms which interbreed with the individual of the same group of closely related individuals.

Species are reproductively isolated by various mechanisms, one of which is due to the behavior.

When the species are not able to reproduce to different species due to the differences in their behaviour in terms of mating rituals which could be due to different mating rituals or a different way of mating like observed in the grasshoppers is known as behavioral reproductive isolating mechanism.

In grasshoppers, the grasshopper's species cannot interbreed due to the differences in the mating songs as a part of the behavior.

Thus, Option-B is the correct answer.

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The rate at which the concentration of a drug in the bloodstream decreases is proportional to the concentration at any time t. I
Westkost [7]

Answer:

C(t) = C_oe^{-kt}

Explanation:

From the given information:

At any given time (t), let c(t) represent the concentration of the drug present in bloodstream.

Deriving the equation:

\dfrac{dC}{dt} decrease proportionally to Concentration C

i.e

\dfrac{dc}{dt} \alpha - C

\dfrac{dc}{dt} = -k C

\dfrac{dc}{c} = -k dt

\int \dfrac{dc}{c} = -k \int dt

㏑(C) = -kt + λ

where,

λ is the integration constant.

Integrating at t = 0, concentration of blood = Co g/mL

C(0) = Co

㏑(C₀) = 0 + λ

λ = ㏑(C₀)

From ㏑(C) = -kt + λ

㏑(C) = -kt + ㏑C₀

㏑(C)  - ㏑C₀ =  -kt

\dfrac{C}{C_o} = e^{-kt}

C(t) = C_oe^{-kt}

∴

The concentration of drug in blood at any time t is:

C(t) = C_oe^{-kt}

4 0
2 years ago
A 19-year-old male was stung multiple times by fire ants. He is experiencing obvious signs and symptoms of anaphylactic shock. Y
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List three separate systems of the earth and explain how they are dynamic systems
AlekseyPX
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The hydrosphere is make up of all the water components on the earth surface and how the water cycle through nature. The atmosphere refers to the layers of gases that surround the planet earth while the biosphere refers to the living components on the earth surface. All these systems interact together to keep life existing on earth.
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(c) The researchers predict that for any particular concentration of substrate, the C. aurantiacus enolase-catalyzed reaction is
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Answer:

<u><em>This is because the enzymes might work best at higher temperature than 37 degrees Celsius. Increase in temperature will increase the catalysis of the reaction.</em></u>

Explanation:

<em>When the temperature is increased, the molecules possess greater kinetic energy. This will allow more substrate and enzymes to collide. As a result, there will be more enzymes taking place in the reaction which will cause the rate of the reaction to increase.</em>

<em></em>

However, if the temperature goes too high, then the shape of the active site of the enzymes will get changed. The enzyme will deactivate and the reaction will stop.

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