This event, which began the Mesozoic Era, opened the way for new species to adaptively radiate around the planet filling ecological niches

A) The Cryogenian “Snowball Earth”

B) The “Great Dying” at the end of the Permian

C) The Chicxulub impact at the end of the Cretaceous

D) The current Holocene extinction

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

What is the next step in the process after a substrate enters the active site of an enzyme

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous