A plant stem is considered to be a(n) ____
a. shoot system
b. tissue
c. root system
d. meristem
e. organ
ANSWER: e
You might also like to view...
What is the physical basis for the "mitotic clock" , which controls the number of divisions one cell can undertake?
Celiac disease is an autoimmune disorder which destroys the microvilli of the small intestine. Vitamin B12 can be absorbed by passive diffusion across the microvilli of the small intestine. Consider a patient who has had 10% of their microvilli destroyed. If the concentration of vitamin B is 0.6 pg/ml inside the lumen of the small intestine and 0.3 pg/ml on the inside of an epithelial cell, how is the diffusion rate of vitamin B altered in this patient?
A. It is increased by 10%. B. It is reduced by .3%. C. It is reduced by .003%. D. It is reduced by 10%. E. It is increased by .3%.
Carbonic anhydrase in red blood cells:a
removes oxygen from the erythrocyte. b. carries carbon dioxide in the erythrocyte. c. converts carbon dioxide to carbonic acid. d. increases the pH of the blood. e. increases the permeability of the capillary to carbon dioxide.
During which phase of mitosis do the chromatids become chromosomes?
A) telophase B) anaphase C) prophase D) metaphase