Which of the following is the primary cause of the rapid rise in loss of biodiversity?
a. new buildings and homes
b. lack of effective laws and regulations
c. human activity
d. natural evolutionary process

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated