Top answers

What are the differences between the nervous and endocrine systems in maintaining homeostasis?

The nervous system and endocrine system work together to maintain a state of constancy in the body's internal environment despite changes in the external environment. The effect of both systems is achieved b...
DS
Answered by Danielle S. • Biology tutor
29895 Views

What are the key differences between plant and animal cells?

There are several important differences between plant and animal cells that will be key to remember in the exam. Namely: - Plant cells have a rigid cell wall whereas animal cells have a cell membrane - Plant...
JC
Answered by Jake C. • Biology tutor
8008 Views

Why is ATP used as an energy store in cells?

ATP is an unstable molecule therefore it releases the energy stored readily and quickly, this is essential for metabolic processes in the cell such as active transport and protein synhesis. As well as being ...
JS
Answered by Joscelin S. • Biology tutor
24129 Views

What are two ways which the body cools itself down when too hot?

Vaso-dilation: blood vessels near to the skin's surface dilate which allows more heat to be lost. This is because more blood can flow through as there is more room in the lumen. Sweating: the hotter we are, ...
HP
Answered by Hannah P. • Biology tutor
15914 Views

What is the difference between the primary and secondary immune response?

The Primary Immune Response occurs at first contact with the pathogen. The body takes several days to build up a sufficient amount of antibodies . There is a three-pronged attack in response to primary expos...
DG
Answered by Daisy G. • Biology tutor
30085 Views