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hoa [83]
2 years ago
7

Underwater plants have thin and narrow leaves without stomata. In such plants, how does exchange of gases take place ?

Biology
1 answer:
trapecia [35]2 years ago
6 0
My guess would be because of photosynthesis
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One of the following is NON-polar molecule
nlexa [21]

Answer:

a. fatty acids is the correct answer.

Explanation:

fatty acids is NON-polar molecule.

Nonpolar molecules are that molecules which are not soluble in water and fatty acids are not soluble in water.

fatty acids are hydrophobic and the hydrocarbon chain present in fatty acids are nonpolar, thus that's the reason fatty acid is nonpolar.

examples of fatty acids

  • fats
  • cholesterols
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4 0
2 years ago
13. A typical pollen grain of a seed plant might contain
Vesna [10]

Answer:

Male and female gametophytes

4 0
2 years ago
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
When trying to evaluate whether a dog is showing strong aggression as opposed to strong fear, one can readily see the difference
gizmo_the_mogwai [7]
The correct option is C.
When a dog is afraid, its ears are usually pinned back to the head. A dog showing aggression will pulled its ear up and forward.
Other signs that a dog shows when it is afraid include: lowering of the head, wrinkling of the nose, curled lips that show many teeth, tucked tail, panting, etc.
Signs show by an aggressive dog include: head held high, curled lips only show the front teeth, tail is upright and stiff, no panting, etc.
6 0
2 years ago
A leaf preserved in hard transparent material is found in:
bagirrra123 [75]

Answer: fossilized amber

8 0
3 years ago
Read 2 more answers
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