For each statement, choose whether it describes a protein or a nucleic acid.

What is the difference between proximate causes and ultimate causes? Provide an example of each.

What name is given to organisms that convert the carbon in organic compounds into carbon in carbon dioxide?

Which of the following true statements best supports the endosymbiotic theory? Select one: a. All mitochondria have circular DNA. b. All eukaryotic cells have ribosomes. c. All eukaryotic cells have DNA. d.

Can two species have the same niche

Which best explains how the human body obtains energy from food? O O A. By inhaling oxygen into the lungs B. By exhaling carbon dioxide C. By removing dangerous wastes D. By breaking and reforming chemical bonds O O

Which of the following are characteristics of heterogeneous mixtures? distinguishable components evenly distributed components particles too small to be seen with a microscope components in varying proportions particles that may settle

You have a yellow pea, but you do not know if it is heterozygous (Yy) or homozygous. When you perform a test cross to a green recessive pea (yy), you observe that half the offspring have yellow peas and half have green peas. What can you conclude? a.

Compare and contrast Uniformitism and Catatrophism

The study of nervous co-ordination of endocrine system is known as?

What is the name of the classification system that we still use today