The observation of tool-making among chimpanzees led several scientists to reconsider the definition of what it is to be human true or false

Is sand alive according to the characteristics of life? Why or why not?

Compare and contrast artificial selection with natural selection

Evaluate Should a cow and a bull that both carry recessive alleles for a mutation that causes decreased milk production be bred? Why or why not?

A biologist is studying a biome that has very cold temperatures. A layer of this biome's soil stays frozen year-round. What biome is the biologist most likely studying? A. tundra B. grassland C. temperate deciduous forest D. coniferous forest

Describe the three types of polar climates

Major consequence of ozone depletion is that a. solar energy will become ineffective. b. more harmful uv rays will reach the earth's surface. c. acid rain will increase. d. certain parts of the earth will become over-vegetated.

Blockage of a blood vessel in the brain that keeps sufficient oxygen from getting into the brain tissue is a result of:

There are two different species of finch that live on the same small island, species A and species B. Both species successfully feed and reproduce on the island. Species A nests in pine trees and eats large seeds.

What happens during gas exchange? A. Red blood cells exchange carbon dioxide for oxygen. B. White blood cells enter the bronchioles. C. Alveoli enter the nuclei of red blood cells. D. Hemoglobin moves from red to white blood cells.

For a lab assignment, you are presented with a fungus and are asked to observe and draw conclusions about its reproductive cycle. During the first hour you notice about 10% of your sample has produced dust-like spores at the tips of its hyphae.