Which cell organelle is the site of protein synthesis?
a.)endoplasmic reticulum
b.)ribosome
c.)nucleus
d.)mitochondrion

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes

Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal response by in order to it's core temperature.

Explain how mendel kept his pea plant from self pollination