MCQ
Corpus luteum is the source of secretion of
- AEstrogen
- ✓Progesterone
- CEstradiole
- DLH
The luteal cells secrete small amounts of estradiol hormone and significant amounts of the progesterone hormone.
Corpus luteum also secretes relaxin hormone.
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$I.$ The transfer of energy from producers to top consumers through a series of organisms is called food chain
$II.$ A food chain is always straight and proceeds in a progressive straight line
$III.$ In a food chain, there is unidirectional flow of energy from sun to producers and subsequently to series of different types of consumers
Which of the statements given above are correct?
$I.$ The total organic matter synthesised by the producers in the process of photosynthesis per unit time and area is known as gross primary productivity
$II.$ Net primary productivity is the weight of the organic matter stored by the producers in a unit area/volume per unit time