What molecule makes the trunk of a tree sturdy?

O A. Disaccharide

O B. Glucose

O C. Cellulose

O

D. Fructose

Why do you think species become extinct?

Which of the following lists levels of organization in the universe from simplest to most complex? A. galaxy clusters - galaxies - star clusters - stars B. stars - star clusters - galaxies - galaxy clusters C.

A scientist who wants to study the affects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg. of fertilizer each day, and Plant C gets 10mg. of fertilizer each day. Which plant is the control group.

What three mechanisms regulate the heart?

What are a primary and secondary consumers

Which of the following is true A. Mitosis results in the formation of two haploid gametes which can then combine to form a diploid daughter cell. B. The process of meiosis forms daughter cells which are genetically identical to their parent cells. C.

What country do you most likely see a gastroenterologist?

What is a non example of chloroplast

Whats a organelle you can see in a plan cell that you did not see in a animal cell?

Identify the pancreas as the source gland for insulin, and describe the function of insulin in maintaining blood sugar levels.