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Nina [5.8K]
3 years ago
15

Researchers are studying the way plants move in response to stimuli. Which scenario could be used to test phototropism? A) Two s

ets of plants could be placed in a dark room and the growth monitored. B) Two sets of plants could be placed in a lighted room and the growth monitored. C) One set of plants could be placed in a lighted room and one set in a dark room; plant growth is monitored. D) One set of plants could be placed in a room with a light on the right side and one set in a room with a light on the left side; plant growth is monitored
Biology
1 answer:
maks197457 [2]3 years ago
7 0
In order to conduct a research you should have an dependent variable, independent variable and the control variable. so in order to study phototropism, then you should need sun light and the growth of the plant and you must have a control that why you need a dark room.
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A cell found in the root of the plant would most likely lack what cell structure.
mestny [16]

Answer:

The cells found in the root of the plant normally lacks chloroplasts, as roots do not perform photosynthesis. The main function of chloroplast is photosynthesis.

Explanation:

The plant cell contains nucleus, cell wall, cell membrane, mitochondria, chloroplasts, vacuole, endoplasmic reticulum, ribosomes etc. Chloroplasts contain green pigments which give green color to the plants. The main function of chloroplast is photosynthesis. During photosynthesis, the plants produce glucose and release oxygen by using carbon dioxide from the air, and absorbing water and nutrients from the soil. Using the glucose in the plants and oxygen, mitochondria produce energy.

The root system of the plants absorb water and nutrients from the soil. The absorbed water and nutrients are then transported to various parts of the plant to carry out processes like photosynthesis, maintaining turgor pressure etc. They have different types of cell which perform some specific functions. These cells also contain cell wall, cell membrane and mitochondria. Mitochondria provides energy for the active transport of water and nutrients. But chloroplasts are absent in root cells as they do not perform photosynthesis.

3 0
3 years ago
Energy flow through an ecosystem is blank​
stira [4]

Answer:

i don't really know what you're asking. But, if you're asking what the main energy source is then it would be the sun.

Explanation:

5 0
3 years ago
Which is an example of respiration?
insens350 [35]

Answer:

I believe its D.

Explanation:

Respiration is an carbon releasing posses.

5 0
3 years ago
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Inherited traits are:
bonufazy [111]
Answer: D. Passed on from parent to offspring
8 0
3 years ago
A cylindrical container holds three tennis balls. The diameter of the container is 3 inches, and it’s height is 8.5 inches. The
Firlakuza [10]
<h3><u>Answer;</u></h3>

35.540 cubic inches

<h3><u>Explanation;</u></h3>

First we find the volume of the cylindrical container:  

V = π(r^2)h  

d = 3  

r = 3/2 = 1.5  

V = π(1.5^2)(8.5)

= 60.083 cubic inches  

Then we  find the volume of three tennis balls:  

volume of one ball (sphere):  

V = (4/3)π(r^3)  

d = 2.5  

r = 2.5/2 = 1.25  

V = (4/3)π(1.25^3) = 8.181  

volume of three spheres:  

3 × V = 3 × 8.181

= 24.543 cubic inches  

Then we get the difference to find the unused volume of the container:  

60.083 - 24.543 = 35.540 cubic inches

3 0
3 years ago
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