Relative humidity is A) The temperature that air is saturated with water
B) The measure of how full of water air is compared to how much it can hold
C) The measure of how much water vapor is in the air

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat