Sieve tube members are part of the
a. ground tissue.
b. phloem.
c. dermal tissue.
d. meristem.
e. xylem.
B
You might also like to view...
The secondary spermatocyte is cell number
a. 2. b. 3. c. 4. d. 5. e. 6.
Which of the following have thick secondary cell walls strengthened with lignin, and support plants like steel beams in a building?
A) parenchyma cells B) collenchyma cells C) sclerenchyma cells D) water-conducting cells
Which of the following is a form of active transport?
A. Osmosis B. Facilitated diffusion C. Simple diffusion D. Sodium–potassium pump E. Glucose transporter
Which of the following descriptions best represents the gradual model of speciation?
A) Speciation occurs regularly as a result of the accumulation of many small changes. B) An isolated population differentiates quickly from its parent stock as it adapts to its local environment. C) Speciation occurs under unusual circumstances and therefore transitional fossils are hard to find. D) Species undergo little change over long periods interrupted only by short periods of rapid change.