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Describe the hormone changes that occur during a womens menstrual cycle

A womens menstrual cycle is on average 28 days long. Hormone release occurs due to signals from the brain. Days 1-5 is when a period occurs and levels of all hormones are low. After this, LH (luteinizing hor...
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Answered by Bhavina P. • Biology tutor
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Describe the process of phagocytosis of a pathogen.

The membrane of the phagocyte surrounds the pathogen and engulfs the pathogen. Enzymes inside the phagocyte break down the pathogen and destroy it. Pathogen proteins can then be presented on the surface of t...
HB
Answered by Harriet B. • Biology tutor
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Explain how monoclonal antibodies are formed and suggest a potential use for monoclonal antibodies.

Monoclonal antibodies are antibodies that are produced by identical immune cell clones that only target one specific antigen . Monoclonal antibodies are produced after the target antigen is injected into an ...
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Answered by Ann A. • Biology tutor
4101 Views

what is the site of gas exchange in the lungs

the alveoli (air sacs that follow from the bronchioles)
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Answered by Sito E. • Biology tutor
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What are the main components of blood and explain their functions.

Blood consists of cells such as red blood cells, white bloods cells and platelets and plasma. Red blood cells are important for the delivery of oxygen to the cells in the body - to enable respiration and the...
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Answered by Shivani M. • Biology tutor
3580 Views