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s344n2d4d5 [400]
3 years ago
14

Which is a scientific question?

Biology
1 answer:
nikdorinn [45]3 years ago
4 0
A. can cats learn to sit down on command
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What is the cell cycle
kogti [31]
The cell cycle, or cell-division cycle, is the series of events that take place in a cell leading to its division and duplication of its DNA (DNA replication) to produce two daughter cells.
8 0
3 years ago
Why does ethanol becomes cloudy/white when testing fat
ki77a [65]

Answer:

Ethanol is known as a fat solvent, and the cloudy or white color that it acquires when testing fat is due to the fact that this test includes the addition of water, forming an emulsion.

Explanation:

<u>The emulsion test for fats</u> is a test used to show the presence of these in some substances or foods.

Under normal conditions, fats are miscible - they can be dissolved - in ethanol, an alcohol, but not in water.

This test consists of dissolving the substance to be tested in ethanol, and then adding water. The principle by which the emulsion test is governed is that ethanol allows a certain amount of fat to dissolve in water, forming a cloudy or whitish emulsion.

Learn more:

Differences between emulsion and solution brainly.com/question/6677364

4 0
3 years ago
According to the cladogram, which of these organisms appeared before all the others?
9966 [12]
In a cladogram the tiny indentations along the bottom line is an evolution or change and every organism after the indentation on the bottom line has it and every organism before the indentation does not
3 0
3 years ago
Select the correct statement about chemical energy, a term used by biologists to refer to potential energy available for release
vekshin1

Answer:

A photosynthetic cell within a plant leaf produces chemical energy, stored within glucose molecules.

Explanation:

The energy captured from sunlight by Photosystems in chlorophyll is used to split a water molecule and reduce carbon dioxide to carbohydrates. This energy from sunlight is therefore stored in the chemical bonds of the glucose molecules. It is thereafter harnessed during cellular respiration when the chemical bonds of glucose are broken and the energy transferred to make ATP molecules.  

5 0
3 years ago
Read 2 more answers
Which of the following is used as evidence to show changes in living organisms throughout geologic time?
Vadim26 [7]

I believe your answer would be:

A. Fossils.

Explanation:

Because they are the preserved remains or traces of animals, plants, and other organisms from the past. They're also important evidence for evolution because they show that life on earth was once different from life found on earth today.

Hope I helped, good luck! =)

4 0
3 years ago
Read 2 more answers
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