the nitrogen cycle analysis questions fill in the blanks please help with as many as possible much appreciated!

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

Organisms that successfully adapt will leave to grownone of the above

What is required in the genotype of an individual to show a recessive trait? a.two recessive alleles b.at least one recessive allele c.no recessive alleles