Which of the following is a biotic factor?

a. Parasites

b. Sun

c. Soil

d. Temperature

What are more people convicted of? a. driving while intoxicated by alcohol b. driving while intoxicated by drugs?

A scientist at the polar ice cap was studying an ice sample from hundreds of meters below the surface. while examining the ice, the scientist found some cells from many years ago.

Which of the following is not part of a chromosome? A. A strand of DNA B. A gene C. Many proteins D. Many strands of RNA

How many times larger is a eukaryotic cell than a prokaryotic cell

Competition for light, water, and nutrients is intense among the land plants. plant success is generally related to photosynthesis, so evolution has resulted in many structural adaptations for efficiently acquiring light from the sun and co2 from

If a mass of granite is in contact with a layer of sandstone that contains small pieces of the granite, which rock is older?

Some organism are - celled while others are multicellular

Vertebrates are actually a subphylum of the Chordata phylum. True False

Which organelle in the plant cell makes glucose from sunlight?

The major cause of air pollution is: a. industrial waste b. sewage and pesticides c. car exhaust d. radioactive waste