What term refers to communities that remain unchanged for long observable periods of time

Most direct evidence of evolutionary relationships between animal species comes from comparing

Why did plants in Australia become extinct? a. rabbits were over populated b. rabbits where underpopulated c. rabbits population declinded or d. rabbits were endangered

Tonya plans to use the lab instrument that is shown below in an experiment. Which property of matter does the instrument measure? mass weight density temperature

Which of the statements about variation is NOT true? Select one: a. Variation is differences in the size, shape, or color etc. of a particular species. b. Variation in a particular species allows for natural selection process to take place. c.

During a plant's life cycle first it is seed then sapling and then what happens next?

Sample Response: The sound of the drumstick hitting the metal bar will get to me in a shorter amount of time in Scenario 1.

A sedimentary rock containing a fern fossil was found. What does this tell about the area at the time the rock was formed? The area was hot. The area was covered by an ocean. The area was on land. The area was cold.

1. Which of the following statements best describe the difference between angiosperms and gymnosperms? A. Angiosperms produce cones to protect their seeds; gymnosperm seeds are surrounded by fruit. B.

If DNA polymerase is observed to pause as it is synthesizing genetic material from a template strand, this is likely the result of: (A) DNA polymerase encountering a "bulky lesion" on the template strand.

Do all social hazards result from an individuals lifestyle choice? Explain