Top answers

What is the difference between a macrophage and a monocyte?

Macrophages are simply monocytes that reside in tissues, rather than blood. In histology, monocytes appear bean shaped, whereas macrophages are just large with fluffy edges.
AS
Answered by Alec S. • Biology tutor
21866 Views

What is the process of natural selection?

- Differences in genes lead to variation within a species - It is in an individuals' best interest to produce the maximum amount of offspring in order to have maximum variation in the genes of their offsprin...
BM
Answered by Bethany M. • Biology tutor
5484 Views

What is a phagocyte?

Phagocytes are types of cells found in the bloodstream and tissue. They are an important part of the immune system. They recognise foreign antigens on invading pathogens and engulf them. They then digest the...
LG
Answered by Lucy G. • Biology tutor
6046 Views

what factors effect the rate of transpiration?

1) Wind- strong winds blow the evapourated water away from the leaf so that when it condenses, it will not go back into the leaf via the stoma 2) Temperature- high temperatures lead to higher rates of transp...
JM
Answered by Jasmine M. • Biology tutor
10241 Views

Explain how the eye responds to different light levels.

Light is a sensory stimulus detected by the eye. Rods and cones located in the retina of the eye respond to light. The pupillary reflex is responsible for controlling the amount of light hitting the retina. ...
DS
Answered by Dominic S. • Biology tutor
22244 Views