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patriot [66]
2 years ago
6

5) Which of these best describe a physical change? A) Waste products are formed. B) Biting into a piece of bread. Simple sugars

in the small intestine are broken down into glucose. D) Saliva in the mouth breaks the bread into smaller molecules like maltose.​
Biology
1 answer:
Alex_Xolod [135]2 years ago
4 0

Answer: Biting into a piece of bread

Explanation:

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A student does an experiment for a science fair to study whether temperature affects the timing of a cricket’s chirps. The stude
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Answer:The timing of the cricket's depends on the temperature of the box

so the answer should be

timing of the cricket's chirps

Explanation:Hi!

There are a few types of variables in these types of experiments. They are independent, dependent, and controlled.

The independent is the one changed by the scientist, or in this case, the temperature. The controlled is the things that remain constant through every case, and the dependent is what is being observed, seeing if it changes through the altercation of the independent variable.

In this case, what is being observed is the timing of a cricket's chirps, because it is being watched whether or not temperature affects it.

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The overall result of the proton-proton chain is that ________
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Answer:

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The cell membrane also has a phospholipid bi-layer comprised of a double layer of phospholipids which have hydrophilic head and hydrophobic tails. This is because the heads are made of phosphate and are polar and are therefore attracted to water (hydrophilic), while the tails are made of lipids (i.e. fats, oils) which do not mix with water and are therefore hydrophobic.

The properties of each phospholipid is also why they form the double layer structure, the hydrophilic heads naturally face outwards into the water and protect the hydrophobic tails on the inside.

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