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icang [17]
3 years ago
6

Which causes plants to respond positively to sunlight

Biology
1 answer:
posledela3 years ago
4 0
Auxins.

Hope this helped!
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If you measure the rate of respiration of plant root hair cells, would you expect it to be the same as, more than, or less than
DaniilM [7]

Answer:

The process of respiration in plants involves using the sugars produced during photosynthesis plus oxygen to produce energy for plant growth. In many ways, respiration is the opposite of photosynthesis. In the natural environment, plants produce their own food to survive.As with photosynthesis, plants get oxygen from the air through the stomata. Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called "aerobic respiration".

In plants, there are two types of respiration: dark respiration and photo respiration. The first kind occurs in the presence or absence of light, while the second occurs exclusively in the presence of light.<em>Plant respiration occurs 24 hours per day</em>, but <em>night respiration is more evident since the photosynthesis process ceases.</em> During the night, it is very important that the <em>temperature is cooler than during the day</em> because plants can experience stress. Imagine a runner in a marathon.

roots respire too!

One of the functions of the substrate is <em>to serve as a site for air exchange between the root zone and atmosphere</em>. In other words, <em>roots breathe oxygen like we do</em>. Different plants have different oxygen requirements for their root systems.

For example,

<em><u>the root system of a poinsettia requires a lot of oxygen, so it is best to use a substrate with high air porosity, while hostas can live well in a substrate with a high water holding capacity. </u></em>

7 0
2 years ago
1. You are studying an evergreen tree that produces cones. The tree is a(n)
arlik [135]
The sporophyte produces
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2 years ago
Name the organs of human<br>elemintary canal.​
Verdich [7]

Answer:

The organs of the alimentary canal are the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The accessory digestive structures include the teeth, tongue, salivary glands, liver, pancreas, and gallbladder.

Explanation:

5 0
3 years ago
It is crucial that the process of mitosis is error free. This is because other wise healthy cells can
Dmitry [639]
It is crucial that the process of mitosis is error free. This is because other wise healthy cells can become cancer cells since mitosis deals with the whole human reproduction thing, its best to keep it clean so nothing happens to the healthy cells or else it can be infected and possibly harm a person/baby.
7 0
3 years ago
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• explain the differences between the x and y chromosomes and how they differ from the rest of human chromosomes.
MA_775_DIABLO [31]
One the XY belong to the male (XX is for females ) and these chromosomes are sex chromosomes and are always the same in every human being ( well except for some genetic disorders)
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3 years ago
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