Neurotransmitters are chemical messengers that travel across the

Plate movement causes mountains to continue to rise after they form. The Sierra Nevada in California and Nevada uplifts an average of 1.5 millimeters every year.

When protists and fungi are compared, which feature is unique to protists? A. spores B. hyphae C. flagella D. pseudopods

Which of the following pairs reflects a relationship to addiction? a. medulla oblongata-craving b. cerebellum-reward c. hippocampus-craving d. nucleus accumbens-reward

What is the dominant plant species in a taiga ecosystem?

Bacteria are responsible in someway for all but one of the process is an earth environment that is

The power was off last night, and the yeast cultures in your incubator cooled down from 25 degrees to 20 degrees centigrade in temperature. to your great relief, you find that the yeast cells did not die.

Which of the following is a way that human modification of limiting factors causes unbalance in ecosystems? a. habitat loss b. pollution c. climate changes d. all of the above

What form is carbon in the atmosphere?

Both sneezing and coughing are examples of protective reflexes triggered by irritation. sneezing and coughing both involve a disruption in respiration. what is the formal name for the period when respiration is suspended

The type of liquid is the