Which are characteristics of all protists? Check all that apply.

They are heterotrophs.

They have nuclei.

They live in moist environments.

They reproduce sexually.

They are unicellular.

Which geological features most likely prompted the development of the theory of plate tectonics? A) river deltas B) glacier fields C) mountain ranges D) tropical rainforests

Lactic acid fermentation is the process by which the muscles produce energy when oxygen is not present. a. True b. False

What is the function of rna polymerase? see concept 17.2 (page 342) view available hint (s) what is the function of rna polymerase? see concept 17.

Why is a virus not considered a living organism?

The production of pink flowered plants from a cross between a red flowered plant and a white flowered plant is an example of A) multiple alleles. B) complete dominance. C) incomplete dominance. D) codominant inheritance.

Another term for "false labor," where after the fourth month of pregnancy the uterus occasionally contracts in order to ready itself for eventual delivery, is called a (n)

Which best describes meiosis?

Based upon the pH scale, a vegetable with a pH of 5.3 would be A. neutral. B. ionic. C. acidic. D. basic.

Describe two communication differences between the nervous system and endocrine system.

Process that takes place at mid-ocean ridges A. Sea-floor spreading B. Continental drift C. Magnetic reversal D. Magnetic minerals E. Fossils