Answer: Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

Explanation:

8 0

3 years ago

Light dependent reactions takes place where

Delvig [45]

Answer:

In plants, light dependent reactions take place in the thylakoid membranes of the chloroplasts.

4 0

3 years ago

The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to

algol13

Answer:

False

Explanation:

The all-or-none law is the law that the strength by which a nerve or muscle fibre responds to a stimulus is independent of the strength of the stimulus.
If that stimulus exceeds the threshold potential, the nerve or muscle fibre will give a complete response; otherwise, there is no response.

5 0

3 years ago