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Sertoli cells are found in:
1. ovaries and secrete progesterone
2. adrenal cortex and secrete adrenaline
3. seminiferous tubules and provide nutrition to germ cells
4. pancreas and secrete cholecystokinin
Seminiferous tubules and provide nutrition to germ cells
Q. How do birds reproduce? Birds like every vertebrate have sexual reproduction. Their embryos develop within shelled eggs containing extraembryonic membranes and exterior the
Q How different is the amphibian heart from the fish heart? The fish heart has only two chambers, a ventricle and an atrium, and the blood that comes to it is purely venous.
Using the Raisin Bread model from the textbook, describe the expansion of the universe. Do the galaxies expand also?
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what are the sub- headings in energy?describe energy in biology?
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Light microscopy: Microscopy started with light microscopes using visible light to illuminate the objects, the most used and familiar microscope is called compound light micro
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