What are two main functions of the female reproductive system in the order in which they occur in the female life cycle?
•pregnancy and oogenesis
•oogenesis and pregnancy
•spermatogenesis and impotence
•impotence and spermatogenesis

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

the tricuspid valve is present between right atrium and right ventricle

the answer you are looking for is the united states forest service.

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