What is the major factor that determines
the distribution of biomes on the planet?

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?

In two sentences explain the differences of neutrophil and macrophage

Which statements about a food chain are true? choose all answers that are correct. a.plants are the first living organisms in food chains on land. b. the plants in a food chain are called herbivores. c. all food chains on land begin with energy from the sun. d. carnivores in a food chain eat only plants.