Blood pressure in the mammalian aorta ismaximum during :
Which is the most common mechanism of geneticvariation in the population of sexually reproducingorganism?
Erythropoiesis starts in :
In an ecosystem the rate of production of organicmatter during photosynthesis is termed as:
Which of the following animals is not viviparous
The mass of living material at a trophic level at a particular time is called :