Which of the following statements about enzymes is true? A. Enzymes produce a product that is changed physically but remains the same chemically.
B. The substance remaining after a reaction carried out by an enzyme is called the product.
C. The active site is the same shape for every enzyme in your body.
D. Salivary amylase is an enzyme made up of lipids.

Apatient is in need of hydration. which type of solution are the patient's cells most likely in?

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

Some species of wasps are social. the queen starts a colony from scratch each spring. she builds a small nest, and lays and raises a group of female workers. the workers enlarge the nest while the queen continues to lay eggs. unfertilized eggs become males that mate with newly hatched females. all of the wasps except the newly fertilized females die by the summer. which best describes this behavior? a)it is beneficial only to the males that do not fertilize eggs. b)it is beneficial only to the female workers that are not fertilized. c)it is beneficial to each one of the individual colony members. d)it is beneficial to the whole species, but not to all of the individual members.