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Explain two ways in which the human body reacts to an increase in body temperature above the optimum.

Firstly sweat is released from sweat glands onto the surface of our skin. This acts to decrease body temperature by causing thermal engery to be transfered away from the skin as the sweat evaporates. Secondl...
MS
Answered by Max S. • Biology tutor
3891 Views

menstrual cycle and contraceptive pills

FSH it causes an egg to mature in an ovaryit stimulates the ovaries to release the hormone oestrogen. Oestrogen it stops FSH being produced - so that only one egg matures in a cycleit stimulates the pituitar...
GK
Answered by Ghazn K. • Biology tutor
3847 Views

Describe briefly the role of tRNA and mRNA in the translation process

mRNA is produced from the transcription of DNA in the nucleus. Afte splicing has occured to remove non coding introns from the pre-mRNA, the mRNA leaves the nucleus via nuclear pores. Moving to a ribosome, t...
HM
Answered by Harry M. • Biology tutor
15284 Views

Name two types of effectors in the body, and the response that effector makes

Muscle - it contracts Gland - it secretes hormones
JB
Answered by Jodie B. • Biology tutor
29366 Views

What is a cholinergic synapse?

All synapses are junctions between neurones and cells. Neurotransmitters are released from the presynaptic neurone into the synaptic cleft, and then they bind to the postsynaptic membrane and stimulate actio...
BR
Answered by Ben R. • Biology tutor
31004 Views