How does a catalyst influence a chemical reaction?
it speeds up or slows down a chemical reaction by direct participation.
it reacts with products to increase the concentration of reactants.
it provides an alternative energy pathway for the reaction to proceed.
it increases the total amount of products formed.

What is the sequence of amino acids corresponds with the rna strand ucg ggg cac

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

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.