Which statement about obesity is FALSE?
a. The number of fat cells in an adult is determined by the amount of fat stored during childhood.
b. Genetics, not overeating, is responsible for obesity.
c. Obesity can result from an increase in the size and/or number of fat cells.
d. Many of the factors involved in obesity are inherited.
e. To lose weight, energy intake must be less than energy output.
b
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When a plant cell is placed in a hypotonic solution, the cell wall prevents ____
a. plasmolysis b. diffusion c. active transport d. the cell from bursting e. the cell from shrinking
Hydrogen peroxide is used in the process of sterilizing instruments such as endoscopes.
Answer the following statement true (T) or false (F)
When blood glucose levels are low, the
pancreas secretes
a. less glucagon and more insulin. b. less insulin and more glucagon. c. more glucagon and more insulin. d. less glucagon and less insulin. e. neither glucagon or insulin.
Which of the following mutualisms is a cleaning mutualism in which one species removes ectoparasites from another?
A) corals and zooxanthellae B) bees and flowers C) ants and acacias D) oxpeckers and large mammals