How often should engage in an aerobic activity to reach an adequate level of cardiovascular fitness?

Unicellular organisms sometimes found in hot springs are part of which domain?

Cells of the nervous system that transmit electrical signals to various organs in the body are called

Why are cells often flattened instead of cubed shaped?

Which type or types of rock can become metamorphic rock? A. igneous, sedimentary, and metamorphic rocks B. only sedimentary rocks C. metamorphic and igneous rocks D. igneous and sedimentary rocks

A zygote consists of how many cells? one two four or five eight or ten I JUST TOOK THE TEST, IT'S NOT "TWO"

List (A) the primary materials necessary for and (B) The materials produced by photosynthesis

How is fermentation different from cellular respiration?

Arrange the phases in the life cycle of the Sun in order from the birth of the Sun to the time in the far distant future when the Sun has cooled.

Which of the following statements is true of the process shown below? A. The cells formed at the end of the process only have half of the chromosomes as the original cells. B.

Two brown-eyed parents I have produced three blue-eyed son. If they have another child, what are the chances that I would also have blue eyes?