A gene showing codominance has Group of answer choices has both alleles independently expressed in the heterozygote has alleles expressed at the same time in development has alleles that are recessive to each other has one allele dominant to the other has alleles tightly linked on the same chromosome

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false

What do you call the long folded tube inside the body attached to the stomach where nutrients in the food are absorbed?