Flatworms are

A. Parasitic

B. Free Living

C. both A and B

D. none of the above

What would happen if we didnt have mitochondria? (paragraph)

Human beings are part of Earth's ecosystems. Thus, human activities can, deliberately or unintentionally, alter the equilibrium in ecosystems. Humans often change ecosystems as a result of population growth, consumption, and technology.

What are the final products (or "outputs") of the citric acid cycle?

Organism with two different genes for a trait

What are the two part of a solution

How is a scientific hypothesis best evaluated?

The overall population of a species decreased. What could have occurred to make this happen? The immigration rate increased, while the death rate decreased. The birth rate decreased, while the death rate increased.

Which of the following terrestrial biomes cannot be found in the United States? A: temperature deciduous forest B: tundra C: desert D: grassland/prairie

Which of these food sources does the bald eagle not feed on? plants fish carrion mammals

what will happen to a base isolated building when seismic wave strike the building during an earthquake