STD 12 - 13. biodiversity and conservation — BIOLOGY STD 12 Science — Question

The trophic level of green plants in food chain is:

Earliest evidences of social life are attributed to

All sons of a couple are colourblind because

Ecological food chain cannot begin in the absence of :

If dwarf pea plant was treated with Gibberellic acid, it grew as tall as the pure tall pea plant. If this treated plant is crossed with a pure tall plant then the phenotypic ratio of is likely to be

Which of the following type of age pyramid reflects a stable population growth?

Ovulation do not occur in lactational period because of

Delete odd one

When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is: