Guard cells are responsible for allowing carbon dioxide to enter a plant. they also control the release of oxygen and water to the atmosphere. based on this description, where are guard cells located? a. on the surface of leaves b. along the root system c. the interior portion of leaves d. within the stem

The pelican's beak is adapted for in .

Whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.

How many alleles does a gamete carry for each trait? a.one b.two c.millions