Top answers


Describe the 'reflex arc'

The relfex arc is an innate response designed to keep us safe (this means we do not consiously think about doing it). One of the most common examples for this question is a person touching a hot flame and im...
LR
Answered by Lauren R. Biology tutor
13697 Views

What is peristalsis?

Peristalsis describes the movement of food throughout the digestive system. Muscles in within the gut wall contract therefore pushing the bolous of food through the digestive system.
GM
Answered by Grace M. Biology tutor
13929 Views

What is diffusion?

The movement of a substance from an area of high concentration to an area of lower concentration. One of the ways a substance can move in and out of a cell across the cell membrane.
GM
Answered by Grace M. Biology tutor
4609 Views

What are the main differences between Mitosis and Meiosis?

Mitosis: One division occurs, two identical cells are formed, occurs in body cells involved in growth and repair. Meiosis: Two divisions occur, four cells with genetic variation are formed, occurs in the for...
AD
Answered by Ava D. Biology tutor
4825 Views

Describe the process of breathing.

Breathing begins with inhalation. This starts with the contraction of the diaphragm, which flattens on contraction pulling the lungs down. The intercostal muscles contract to move the lungs up and out. The c...
AD
Answered by Ava D. Biology tutor
17463 Views