Which cell organelle most directly affects the rate of active transport? why?

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon

An is a pure substance that can’t be broken down into simpler substances by chemical or physical means