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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.

- 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...

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 dig...

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 temperatu...

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 r...