Which cellular structure is unique to plant cells?
A) Ribosome
B) Chloroplasts
C) Mitochondria
D) Plasma membrane
Ans: B) Chloroplasts
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The movement of oxygen through the aquatic plant may depend on
A. osmotic absorption by the roots. B. aquaporins. C. negative pressures created by transpiration. D. differences in the water potential of different tissues. E. aerenchyma tissue.
Which group of organisms has the greatest percentage of species in danger of extinction, according to the International Union for Conservation of Nature (IUCN)?
A) plants B) mammals C) birds D) reptiles
Listeria monocytogenes causes listeriosis, an important ________.
A. water-borne infection B. food-borne infection C. insect-borne infection D. air-borne infection
Visible expression of a genotype—e.g., brown eyes or attached earlobes.
What will be an ideal response?