What's the population density of a 300 square meter area with a population of 69 ?

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.

Identify the examples in which sam interacts only with natural resources