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Describe and explain three differences between meiosis and mitosis

Mitosis consists of one cell division whereas meiosis consists of two cell divisions.Mitosis produces two genetically identical daughter with the same number of chromosomes as the parent cell whereas meio...

Answered by Krishan P. Biology tutor
2700 Views

Describe the roles of the nervous system in homeostasis.

Homeostasis is a maintenance of a constant internal environment.
The human nervous system consists of central nervous system; brain and spinal cord and peripheral nervous system which is subdivided i...

Answered by Florentyna M. Biology tutor
8196 Views

Name and describe the features of the type of blood vessel which takes high pressure blood from the heart to other parts of the body

Arteries are the blood vessels which deliver oxygen-rich blood from the heart to the tissues of the body. The outer layer of an artery is made of collagen fibers. The middle layer has smooth muscle and el...

Answered by Hazel D. Biology tutor
2040 Views

How does a pregnancy test work?

1) The wick of the pregnancy test is socked in urine. 2) The test contains mobile monoclonal antibodies with small coloured beads attached to them. 3) These mobile monoclonal antibodies only bind t...

Answered by Lijun Z. Biology tutor
13979 Views

Fertiliser, such as manure, contains ammonium compounds. Explain how the presence of soil bacteria and the use of manure improve crop yield. (6 marks)

Ammonium compounds in the manure are converted into nitrite, then into nitrate by nitrifying bacteria. Nitrate is then taken up by plants

Answered by Meral C. Biology tutor
2763 Views

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