Search over 10,000 free study notes

The sperm cell is adapted to its function in multiple ways:It has a tail which enables it to swim towards the egg.The middle section of the cell is packed with mitochondria. This allows it to release the ...

The alveoli are covered by a rich blood supply of capillaries- this provides a diffusion gradient for oxygen to move into the blood and carbon dioxide to move into the lungs.The alveoli are also highly fo...

She is dehydrated so osmoreceptors in the hypothalamus shrink, this causes ADH to be secreted by the pituitary gland. The ADH travels in the blood stream and acts on the collecting ducts of the kidney nep...

Answers are any 2 of the following:
1) plant cells have a cell wall whereas animal cells do not2) plant cells have vacuoles whereas animal cells do not3) plant cells have chloroplasts whereas animal ...

The process in which salt is removed from salt water to produce drinkable water is called desalination. There are two major mechanisms that humans use to achieve this: thermal desalination, or distillatio...