For a standard H-R diagram, what are the stars in the lower left region of the diagram?

A. Main sequence stars

B. Supergiants

C. Giants

D. White dwarfs

The macromolecules in biochemistry are proteins, carbohydrates, lipids, and nucleic acids. What main elements do all of these have in common? A) carbon and sulfur B) carbon and hydrogen C) oxygen and nitrogen D) oxygen and phosphorus

Which is the most common cause of erosion in deserts? A. wind B. ice C. plants D. liquid water

It is estimated that animal - or insect-pollinated plants produce 1000 pollen grains for each ovule; wind-pollinated plants produce 1,000,000 pollen grains for each ovule. What does that indicate about pollination systems

If two parents who blood types are both b produce a child that has blood type o what can you say about the parents genotypes

The Sun's apparent Dailey movement across the sky caused by

Which of these includes sugars, starches, and cellulose?

What are the biotic factors in a butterfly garden and the abiotic factors in a butterfly garden

Which phase of water has the greatest amount of kinetic energy

The process of squeezing food through the digestive tube by contractions of the outer wall is: A. digestion B. enzyme action C. peristalsis D. hydrolysis

According to Fick's law of diffusion, diffusion rate is proportional to the surface area of the membrane, the concentration gradient, and which other variable?