Ascientist argues that two species of birds are the same species because they have similar body structure, similar dna, and similar beaks because they eat the same food. the birds do have some variations in color patterns and have a different mating season. which piece of evidence would go against this argument and suggest that the birds are actually different species?

the correct answer is:

a population changes in response to a change in the environment.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.