Search over 10,000 free study notes

Dead plants are able to decay faster in soil where earthworms live as earthworms disrupt the compact nature of the soil allowing more oxygen to reach the soil. This means there is more aerobic respiration...

It is important that a cell membrane is intact as it protects cell contents from the external environment, and controls what can enter and exit the cell. At temperatures below normal, cell membrane perme...

During exercise body temperatures increase, as this can be damaging to biological processes (enzymes may be denatured) the body tries to maintain a constant body temperature in a process called homeostasi...

The small intestine has several adaptations to facilitate the absorption of nutrients: a short diffusion distance (single layer of epithelium) to maximise absorption, a good blood supply to rapidly transp...

Attachment. A virus, for example a bacteriophage attaches to the surface receptor of the host bacterial cell.Penetration. The virus injects the viral DNA genome through the cell wall and the cell membrane...