write my assignment 7231

Please help me with these three questions

As a patch of scraped skin heals, the cells fill in the injured areas but do not grow beyond that. This is an example of?

density independent inhibition

density dependent inhibition

growth factor inhibition

anchorage independence

Which of the following abnormalities can be found in humans related to sex chromosomes?

Two x and one y chromosome causing Klinefelter syndrome

Three x chromosomes with no apparant symptoms

Only one x chromosome causing Turner syndrome.

One x and two y chromosomes causing no symptoms

All of the above are human chromosomal abnormalities

Which of the following statements is false?

a typical body cell is called a somatic cell

gametes are haploid cells

gametes are made by mitosis

a zygote is a fertilized egg