Many of the biochemical reactions that occur within cells are catalyzed by enzymes. which of the following statements is true about most enzyme-assisted reactions? > most enzyme-assisted reactions are slow.> most enzyme-assisted reactions can take place at any temperature. > most enzyme-assisted reactions can take place only within a ribosome. > most enzyme-assisted reactions are reversible.

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has

Asegment of dna that codes for rna and a protein is a

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.