Explain why soil is classified as a heterogeneous mixture.

Why do you need a control in an experiment 50 words in answers

Almost all coal used today was produced during the Carboniferous period from dead animals in the swamps. True or false

After her run aisha felt thirsty. thirst was her body way of telling her she needes more water to maintain

Organisms that are not autotrophs A). Get energy from inorganic molecules B). Can survive without energy C). Get energy from sunlight D). Must consume other organisms to get energy

Receptors that work through second messenger systems are called receptors.

Which transports digested lipids and bile across digestive fluids to the surface of mucosal cells? a. LDL'sb. micellesc. HDL'sd. chylomicrons

Which biomes contain a limnetic zone surrounded by a littoral zone? A. rivers and streams B. estuaries C. coral reefs D. ponds and lakes E. oceans

QUICK! In a developing embryo, what process allows cells of the mesoderm to give rise to muscle, bone, and heart tissues? Select one: a. cell differentiation b. cell depolarization c. cellular respiration d. cellular replication

According to the fluid mosaic model of the cell membrane, a. there are fats floating in the protein layer. b. carbohydrates function as membrane channels. c. nonpolar ends of phospholipids are exposed to water inside and outside the cell. d.

What is the actual meaning of the suffix - metry?