Which of the following are not a spore-bearing vascular plant?

a. ferns

b. cycads

c. club mosses

d. horsetails

Which of the following do all vertebrates have in common? More than one answer is possible. A. mammary glands B. cranium C. vertebral column D. specialized teeth

Which of the following is true about totipotent cells? A.) Embryonic stem cells are totipotent cells. B.) Totipotent cells can differentiated cells. C.) Totipotent cells can differentiate into any type of cell and tissue. D.

Describe the three steps of the lock and key model of enzyme function.

What is the corona of the sun

When do animals cooperate with one another? a.) when the costs outweigh the benefits b.) when the costs equal the benefits c.) when the costs are less than the benefits

What coefficients must be placed in the following blanks so that all atoms are accounted for in the products? C6H12O6 - > C2H6O + CO2 a. 2; 1 c. 1; 3 b. 3; 1 d. 2; 2

Which describe colloids? Check all that apply. heterogeneous mixtures homogeneous mixtures may have a uniform appearance are made up of at least two substances will settle out over time

A period during which the embryo of a seed is alive but not growing is a. dispersal. b. fertilization. c. germination. d. dormancy.

Which rights determine who is responsible for managing the resources? ___rights determine who is responsible for managing the resources.

Body composition is affected by two factors - the number of calories eaten (energy in and the amount of activity performed and calories burned (energy out. body composition is maintained by: