<span>the time when the sun crosses the plane of the earth's equator, making night and day of approximately equal length all over the earth </span>
Passive is when the channels don't need energy to do so and active is when they need energy
Answer:
it has many years on it
Explanation:
it is old so it is not new
Answer:
A maple tree is an example of a tree
<u>levels of organization </u>
from the smallest units of life to the largest units of the environment :
organelles >>> cells >>> tissues >>> organs >>> organ systems >>> organisms >>> populations >>> communities >>> ecosystems >>> biosphere
