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iren [92.7K]
3 years ago
10

I WILL GIVE 20 EXTRA POINTS!!

Biology
1 answer:
mariarad [96]3 years ago
4 0

Answer:

Due to DDT ban

Explanation:

DDT is an pesticide or insecticide which got banned because of its harmful effect in environment.

According  to the graph the eggshell of both the bird species A and B are thick in 1930 but begin to thin after 1940 as DDT (Dichlorodiphenyltrichloroethane) introduced in the ecosystem.

Eggshell return to their original thickness by 1980 because DDT got banned after 1970. DDT is a harmful pesticide which alter the bird's calcium metabolism which leads to thin eggshells.

Hence, due to banning of DDT after 1970,egg shell of either species return to their original thickness by 1980.

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The end result is having two identical daughter cells.
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3 years ago
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Answer:

  the very long river

Explanation:

Larger rocks tend to settle out of the water flow sooner than smaller rocks do, so the rocks remaining at the end of a very long river would tend to be very small. A very short river may still be carrying somewhat larger rocks.

The very long river probably drops the smallest rock pieces near the ocean.

_____

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If both rivers end at a waterfall into the ocean, they may very well carry the same sort of rock size distribution. If the short river traverses muddy terrain, and the longer river traverses rocky terrain, the answer may be reversed.

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3 years ago
Two important natural processes that release carbon into our atmosphere are
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Two important natural processes that release carbon into our atmosphere are photosynthesis and respiration.

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Condensation often gathers in the bottom of agar slants. why is it important in this exercise to limit condensation on plates bu
vekshin1
<h2>Answer:</h2>

Because condensation on the slant effects the bacterial growth in the test tube.

<h3>Explanation:</h3>
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What is the primary product of light independent reactions
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For the Calvin cycle (Light independent cycle) to continue, 5 out of  the 6 carbons provided by the two G3P molecules are used to regenerate ribulose 1, 5 phosphate. Therefore there  remains only one carbon for the next turn of the cycle.

One  molecule of glucose requires 6 turns of the cycle. Any extra G3P is used to make starch, sucrose and cellulose.



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