Need ! extra !

complete the punnett square for the cross between two plants that are heterozygous for seed shape (ss) and seed color (gg). smooth is dominant to wrinkled and green is dominant to yellow. determine the phenotypic ratio for the offspring by determining the number of each of the phenotype combinations listed below (hint: follow the example answers that i gave for experiment 8.2).

parental phenotypes: x
parental genotypes: x
parental gametes: x

smooth/green =
wrinkled/green =
smooth/yellow =
wrinkled/yellow =

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.

What causes darkening of the skin as melanin production increases