STD 12 - 7. human health and disease — BIOLOGY STD 12 Science — Question

Which one among these, is not concerned with wild life conservation?

Phenomenon of' industrial melanism' demonstrates.

In a zygote if the number of alleles is two in alternate forms, the expression of adult would be

Coleorhiza is

Which one of the following is the correctly matched pair of an endangered animal and a national park?

Sex of a human child is determined by

Which of the following concept explains about the constant occurrence of allele frequencies generation after generation in a small population not influenced by evolution?

Transfer of energy from one trophic level to other trophic level is according to the second law of thermodynamics. The efficiency of energy transfer from herbivorous to carnivorous is

Female gametophyte of a typical dicot at the time of fertilization is