Root hairs are extensions of what type of cells?
A) meristematic
B) vascular
C) ground
D) epidermal
D
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Pole cells are responsible for forming what structures in an adult organism?
A. liver cells B. gametes C. nerve cells D. hematopoietic stem cells
The main natural source of phosphorus is ____
a. Earth's crust b. fertilizer c. guano d. legumes e. water
Which are the three main roles played by organisms in community life?
a. producer, detritivore, decomposer b. consumer, detritivore. decomposer c. producer, consumer, decomposer d. facilitator, decomposer, consumer e. realized niche, fundamental niche, habitat
Transfer of genes between organelles and the nucleus:
a. occurred in the past. b. only happens between the mitochondria and the nucleus. c. only happens between the chloroplast and the nucleus. d. is still ongoing.