A group of freely interbreeding organisms constitute a:

a. family

b. genus

c. species

d. class

XIf you have a lung cell with 30% oxgen inside the cell and 90% outside, and 70% Carbon dixide inside and 10% outside the cell, which way will each substance move and why?

Mark an X next to ALL the statements below that are true about air pressure. __Increased pressure results in increased volume. __Increased pressure results in increased temperature. __Increased pressure results in increased density.

What process of weathering causes rocks to change composition when reacting with oxygen?

Why is evolution considered a theory? A. It was proposed by a scientist. B. It cannot be proven. C. It is a guess about what happened. D. It is backed up by scientific evidence.

Which of the following is NOT a function of Earth's atmosphere? A. provides carbon dioxide for plants B. provides oxygen for plants and animals C. keeps volcanoes from erupting too much D. keeps Earth's surface at a comfortable temperature

List 3 multicellular organisms

Which nutrient enhances iron absorption from the intestinal tract?

Explain how the process of radioactive decay is used to accurately date fossils

Which joint surgery is used as a prophylactic measure and as a palliative treatment for clients with rheumatoid arthritis (ra) ?

The layer of the atmosphere where many airplanes fly to avoid thunderstorms and other turbulence is called