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Anna11 [10]
3 years ago
10

if a television with mass 15kg is lifted to a shelf of height 1.2 m how much gravitional potential energy is added to the televi

sion. A.1024.2j. B176.4j. C18.0j. D:2646j
Biology
1 answer:
algol133 years ago
6 0
Bdhxhdkdlxbxkzkzkzj
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Plants move water from the roots of the plant to the leaves through transpiration. As water evaporates from the leaf, cohesion p
adoni [48]

Answer:

Stomata are the organs present on the stem and leaves of the plant and help in the gaseous exchange and evaporating water present in the aerial parts of the plant. Mainly leaves stomata plays role in gaseous exchange and transpiration which is the evaporation of the aerial water of plants by opening and closing the stomata. Stomata are small pores mostly and normally present under the leaves and regulated by the guard cells, dum bell shaped cells to close or close it.

Other than closing and opening the stomata, stomata density also can affect the rate of gas exchange as well as transpiration. Stomata density is the presence of the numbers of the stomata per unit area. In heat or sunny area the stomata density is higher than the shady or dark area to increase the transpiration in order to cool down the leaves of the plant which prevent the chloroplast proteins to denature.

4 0
3 years ago
Nasim is driving on a snow-covered road, and her car begins to slide. The quick behavioral response and the increased heart rate
Luda [366]

Answer:

1. sympathetic

2. parasympathetic

Explanation:

The sympathetic division of the autonomic nervous system triggers the release of stress hormones from adrenal medulla under emergency conditions. There is a series of physiological responses such as increased heart and breathing rate, an increased flow of blood to skeletal muscles, dilation of pupils, etc. These events helped Nasim to fight the stress conditions.  

Once she was relieved, the parasympathetic system is activated that shut down the physiological responses generated by sympathetic division. It slows down the breathing and heart rate and triggers the digestion and absorption of nutrients to restore the energy level of cells.

3 0
3 years ago
By increasing the height of an inclined plane, work is made easier.<br><br> True or false
umka2103 [35]

Answer:

False.

Explanation:

You have to push harder.

4 0
2 years ago
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According to one hypothesis, life on earth emerged from (bluegreen algae/ amino acids/ molten metals/ crustal rocks) in the pres
Yuri [45]
1) The answer is <span>bluegreen algae
</span>
Bluegreen algae or cyanobacteria <span>are thought to have started life on earth because they converted the atmosphere that didn't have a lot of oxygen, into an atosphere with enough oxygen to exist life. That </span>oxygen was a product of their photosynthesis.

2) The answer is lightning.
<span>By Primordial Soup Theory, life began as a result of the combination of chemicals from the atmosphere and lighning (a form of energy) to make amino acids. Aminoacids are necessary to build proteins, and proteins are necessary for all the organisms.</span>
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3 years ago
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Worlds easiest answer<br> What is environment?
damaskus [11]

Everything that surrounds us is our environment

6 0
3 years ago
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