Which of the following is false about the structure of enzymes?

A. Every enzyme has an active site.

B. An enzyme can catalyze most reactions if the reactants are at a high concentration.

C. An enzyme’s active site is determined by the shape of the enzyme.

D. Enzymes speed up reaction rates.

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

Iwill mark brainliest and all that sha-bang. what is the function of the endocrine system? a. control longer term response in the body. b. transmit messages throughout the body. c. remove waste from the body. d. all of the above

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine