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Nookie1986 [14]
3 years ago
7

The image shows the 'popped' endosperms of popcorn. What purpose does the starchy endosperm serve? A) food storage B) reproducti

on C) photosynthesis D) water regulation
Biology
1 answer:
kvv77 [185]3 years ago
8 0
The correct answer is A
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The energy content of food is described in terms of calories because
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You are served dessert at a restaurant. You want to know what % of the calories in the dessert are from fat. The menu states tha
jasenka [17]

Answer:

39.82 %

Explanation:

Proteins and carbohydrates provide 4 calories per gram. On the other hand, fats provide 9 calories.

We can first calculate the calories of protein + carbohydrates:

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And we must calculate the calories provided by fat:

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Now to get the percentage we must see how many calories the dessert has in total:

          136 + 90 = 226 cal

This represents 100% of calories. And now we need to find out how much 90 calories are from the total.

           226 cal -----> 100%

             90 cal ------> X

       (90 x 100) / 226 = 39.82 %

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3 years ago
How does relative-age dating help scientists learn about fossils?
aleksley [76]
How old it is compared to another specimen in relation.
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How do the data relate to selective pressure and natural selection?​
vekshin1

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Explanation:

Selection pressure means factors that contribute to selection which variations will provide the individual with an increase chance of surviving over others. Because of selective pressures, organisms with certain phenotypes have an advantage when it comes to survival and reproduction. Over time, this leads to evolution.

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