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3 years ago

8

Have at least one pair of membranous wings (select all that apply)

1 answer:

a_sh-v [17]3 years ago

8 0

Odonata

Coleoptera

Hope it helps

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If a crystal of potassium permanganate is placed on agar and after 15 minutes the diameter of the area over which the dye has sp

Vadim26 [7]

Answer:

Diffusion rate is 1.96 × $10^{-3}$ $cm^{2}$ /s

Explanation:

Diffusion is the process in which the molecules of a substance propagates from a region of higher concentration to region of lower concentration through a semi-permeable membrane.

diffusion rate = $\frac{area}{time}$

Given that; diameter = 15 mm, time = 15 minutes.

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area = $\pi$ $r^{2}$

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diffusion rate = $\frac{1.7679}{900}$

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Oxygen deficiency in surrounding tissues is called

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