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makkiz [27]
3 years ago
8

Three wax palm trees are kept at different humidity levels inside of a greenhouse for 12 weeks. One tree is left outside in norm

al conditions. Height of the tree is measured once a week. What is the independent variable, the dependent variable, the control group, and the constant?
Biology
1 answer:
Yakvenalex [24]3 years ago
3 0

Answer:

I.V. Humidity level

D.V. height of trees

C.V. same type of tree, same greenhouse,

Explanation:

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Organic compounds ALL contain the element carbon. Which organic compound, used for stored chemical energy, contains
skad [1K]

Answer:

The correct option is <u>B. Lipids</u>

Explanation:

Lipids can be described as molecules which dissolve in non-polar solvents and cannot dissolve in water. The biological function of a lipid molecule is to store energy as well as to structure the shape of cell membranes. Lipids are also used in a cell for signalling.

Lipids are made up of carbon, hydrogen and oxygen. Some lipids might have phosphorus in them like the phospholipids which make up the cell membrane.

6 0
3 years ago
The end product(s) of the light-independent reactions of photosynthesis is/are - Select all that apply.
iren2701 [21]

Answer:

Glucose

Explanation:

The light dependent stage produces oxygen while the light independent stage produces glucose ( a carbohydrate)

Oxygen and glucose are the two products of photosynthesis.

7 0
3 years ago
true or false? to make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thor
faltersainse [42]

The thorax is a very vital and important organ in the human body.

  • It is a structure that serves as a<u> </u><u>protective covering</u> for organs in the body such as<u> the lungs, the heart, some vital blood vessels</u> e.t.c

It is<u> false</u> that to <em>make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thorax.</em>

  • When a person breathes in,  <u>the chest cavity expands (the volume increases) and the pressure in the thorax decreases.</u>

  • When a person breathes out, <u>the chest cavity decreases in size, and the pressure in the thorax increases. </u>

  • Therefore, we can see that the <u>process of breathing in humans</u>, follows the <u>principle of Boyle's Law.</u>

  • Boyle's law states that as the<u> volume increases there is a decrease in pressure</u> and <u>as the volume decrease there is an increase in pressure. </u>

Therefore, It is <u>false</u> that to <em>make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thorax.</em>

To learn more, visit the link below:

brainly.com/question/24359876

3 0
3 years ago
The first organisms evolved on Earth around 4 billion years ago. The fossil record indicates that the first organisms were which
Irina-Kira [14]
Prokaryotes were the first

6 0
3 years ago
Read 2 more answers
PCR is a useful technique because
Tpy6a [65]
Hello,

PCR is a useful technique because it is used to amplify small segments of DNA.

Thanks,
6 0
3 years ago
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