Where will primary succession occur?

a. in a landscape with vegetation and soil

b. in a landscape with vegetation only

c. in a landscape with soil only

d. in a landscape without vegetation or soil

What goes on at the center of earth?

Which of the following is true of an object with no net charge? O A. The object has equal numbers of neutrons and protons. O B. The object has equal numbers of protons and electrons. O C. The object has more protons than electrons. O D.

What characteristics of hair differ in the human population?

Carbon dioxide and methane are the two most abundant gases in magma ... a. True b. False

What are some natural processes that represent physical and chemical changes?

In humans, normal color vision is dominant over colorblindness. A colorblind male marries a female who is a carrier for color blindness. What is the probability that a colorblind child would be born to these parents?

What is the dependent variable? Also what is the Testing Variable.

Statistics about the climate in a tundra ecosystem were collected for 30 years. which hypothesis about a population of caribou could be made based on the climate data collected? a. caribou calf survival is directly related to annual rainfall amounts.

Since plant cells do not have centrioles, how do they make spindle fibers during mitosis?

Plants use sunlight to produce some ATP during photosynthesis. How do plants produce ATP when the Sun is not out? a. Plants are secondary consumers. b. Plants also use cellular respiration. c. Plants extract ATP from the stars. d.