Which of the following does not occupy the bottom of an energy pyramid?

a. phytoplankton

b. trees

c. grass

d. zooplankton?

How will the movement of water affect a survey if it is transferred from a hypotonic solution to a hypertonic solution? Question 5 options: The cell wall will dissolve The cell will be unaffected The cell will shrink The cell will burst

Some antibiotics cure diseases by inhibiting the formation of the cell walls of specific pathogens, or disease-causing agents. On what type of pathogens can antibiotics be used? A viruses B. both bacteria and viruses C. bacteria D.

Which of the following best explains the factors that led to the dust bowl? a. Humans had been farming the land for too long without droughts. b. Temperatures suddenly increased and brought on drought conditions. c.

The layer of the gi tract wall that is responsible for motility is the

What type of variation is necessary for natural selection to occur artificial variation Environmental variation Genetic variation Neutral variation

Desert plants are characterized by A) broad leaves. B) fibrous roots. C) succulent stems. D) deciduous leaves.

If a cell was observed under the microscope and found to have a rigid cell wall and be green in color that cell is most likely a

How can scientist determine the age of a petrified wood? O Growth rings indicate how old the plant was. The size of the petrified wood can indicate its age. O The condition it was found can identify its ages.

How are stem cells similar to cancer

An elderly client who enjoyed watercolor painting when young has recently indicated a desire to begin painting again. According to Maslow's theories on human needs, what is the best reason the client will express an interest in painting again?