MCQ
Which among the following has 23 chromosomes?
- ASpermatogonia.
- BZygote.
- CSecondary oöcyte.
- DOögonia.
(n = 23)
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$R$ -Middle piece of sperm is filled with enzymes
$I.$ Charles Elton developed the concept of ecological pyramid
$II.$ After the name these pyramids are also called as Eltonian pyramids
$III.$ It is a graphical representation or pyramid shaped diagram which depicts the number of organisms, biomass and energy at each trophic level
Which of the statements given above are correct?