Several members of the Fitzsimmons family have polydactyly, and they differ in their numbers of extra fingers and toes. Yet certain relatives who should have extra digits don't, such as Megan Fitzsimmons. She has two children, a son with 2 extra fingers and a daughter with an extra toe; Megan's father has an extra digit on each hand and foot. Polydactyly in this family is.

Charles darwin published his theory of evolution in 1859. in what way foes modern evolutionary theory differ from the theory as proposed by darwin? a) darwin inferred that individuals can evolve, but modern generic science has shown that this is not true. b)darwin inferred that individuals do not evolve, but modern genetic science has shown that this is not true. c)modern science has disproved most of darwin's original theory of evolution, because darwin knew nothing about generations and their role in heredity. d)generic studies have shown that gene expression and other factors operate along with natural selection, but most of darwin's theory has been supported by modern science.

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

How many chromosomes are in a gold fish?