What causes the tides?

The wobbling of the Earth on its axis

The tilt of the Earth on its axis

Unequal heating of the Earth's surface

Gravity of the moon and sun

List all the organ systems

How many double-helical DNA molecules will be present in the sperm and egg cells of dogs that are diploid animals that contain 78 replicated chromosomes in each cell that enters meiosis?

What is the best approach to prevent the spread of a bacterial infection?

Which activities of the body are controlled by the central nervous system?

What do gametophytes produce

An example of a surface that would be a good reflector of sound waves would be hardwood floors. True or False?

A primary objective of cell fractionation is to A) view the structure of cell membranes. B) sort cells based on their size and weight. C) determine the size of various organelles.

Explain griffith's experiment and the concept of transformation

During what process in the cell cycle does one cell become two cells?

All BUT one description applies to the structure of RNA. That is A) four nitrogenous bases. B) double-stranded molecule. C) contains a phosphate group. D) 5-carbon sugar called ribose.