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ch4aika [34]
3 years ago
14

Question 19

Biology
2 answers:
Crazy boy [7]3 years ago
8 0

Answer: A they are toxic

Explanation:

Luden [163]3 years ago
7 0

Answer:

Comment relation is recommended when working with non-polar solvent because they are toxic. Therefore, the correct answer to the question is option A.

Explanation:

The ventilation is required for working with non-polar solution because they are toxic in nature and they could harm. The ventilation to a room is required for the exchange of gases. All the harmful and toxic gases are exhausted out through ventilation and pure air is fixed in the room.

The ventilation is required not only for experiment room but also in the room which is operated with heat are there is work with the heat. The heat expelled out during the course of the experiment could alter the next experiment or the air.  

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The wing of a bat, the flipper of a whale, and the forelimb of a horse appear very different, yet detailed studies reveal the pr
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Answer:

Homologous structures

Explanation:

Homologous structures are structures (i.e skeletal elements) that come from the same common ancestor but they appear in the descendants of the ancestor with some modifications, normally due to different functions.

The wing of bats, flippers of whales or dolphins and the forelimbs of horses is a common example of homologous structures. Bats, whales and horses are vertebrates and all came from the same vertebrate common ancestor.

The common ancestor of these organisms had the bones that make up these structures, but through evolution those bones that make up the homologous structure were modified to serve different functions. They were modified for the flight in bats, for swimming in whales and for life on land in horses.

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Explanation:

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Is the reaction of bromelain and gelatin dehydration synthesis or hydrolysis? Explain
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