Spring tides:

A. happen twice a month

B. are caused by the gravitational pull of the sun and the moon

C. occurs when the earth, sun, and moon are aligned

D. all of the above

What are some of the roles that appendages of the skin play in maintaining body homeostasis?

Does anyone know about "Van der Waals forces" I know it's "intermolecular forces of attraction" And they hold molecules together, especially large ones and it's not as strong of a bond as covalent and ionic bonds.

The layer of atmosphere with the highest temperature is the

Leishmania is a protozoal parasite are transmitted by the bite of infected female sandflies. they are then phagocytized and live within host leukocytes. which type of cell is most likely to harbor them?

The question below refers to the selection "taste-the final frontier." hydroponic plants are grown - a. on mars. b. without air. c. in water. d. in soil.

Volcanoes, lightning, and the combustion of fossil fuels ALL contribute to acid precipitation. true false

Does an electric current cause a coiled wire to become an electric bell

Which is a renewable resource? A) coal B) sunshine C) gasoline D) natural gas

How are fitness and adaptation important to natural selection?

Where do the light-independent reactions of photosynthesis occur? A. Stroma B. Thylakoids C. Cell cytoplasm D. Intermembrane space