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pantera1 [17]
3 years ago
12

What's the answer please

Biology
1 answer:
goldenfox [79]3 years ago
6 0

Answer:

Explanation:

A is the correct answer

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Grant refuses to visit the island for the weekend until Hammond does what?
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Grant will refuse to go until hammond either threats him with something or forces him to go or he promises something grant will like to be there
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3 years ago
Of the following experimental results, which is the best evidence that photosynthesis is more efficient at certain wavelengths o
GarryVolchara [31]

Answer:

The correct answer will be option-C

Explanation:

The plant absorbs the sunlight to perform photosynthesis which helps produce the sugar molecule used by the plants.

The plants absorb maximum sunlight at two wavelengths that are red and blue wavelength by chlorophyll and other pigments. The efficiency of photosynthesis is also measured maximum at these two active wavelengths called action spectrum.

In the given question, since the efficiency of photosynthesis has been discussed which could be measured with the production of oxygen and consumption of carbon dioxide. The experiment performed by the Engelmann showed that aerobic bacteria got concentrated in the blue and red wavelengths as the output of the photosynthesis were observed maximum.

Thus, the selected option is the correct answer.

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3 years ago
Most sidewalks are made out of solid concrete sections. There are spaces between the sections. What happens to the spaces during
VladimirAG [237]

Answer:

The options are :

The spaces get wider because the concrete sections shrink.

The spaces stay the same because the concrete sections does not shrink or expand.

The spaces get narrower because the concrete sections expand.

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The answer is

Some spaces get wider, some spaces get narrower, and some spaces stay the same because each concrete section behaves differently on a hot summer day.

Concrete surfaces react with a change in temperature by either shrinking or expanding depending on the temperature difference.

When there is an increase in temperature it expands a bit and shrinks a bit too when the temperature is decreased.

5 0
3 years ago
What is the magnitude (amplitude) of an action potential? <br> a. 30 mv <br> b. 70 mv <br> c. 100 mv
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Option C 100mv because the membrane goes from -70 mV to +30 mV. Thus, during the action potential, the inside of the cell becomes more positive than the outside of the cell.
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Which part of a robot converts stored energy into movement?
MAXImum [283]

Answer:your mom

Explanation:

7 0
3 years ago
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