Which statement about carbon is correct?
a. Heterotrophs consume autotrophs to obtain carbon.
b. Photosynthesis converts organic carbon to carbon dioxide gas.
c. Carbon is the most abundant element in all living organisms.
d. The long-term cycling of carbon occurs through respiration.
a. Heterotrophs consume autotrophs to obtain carbon.
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After the cell enters which phase does division seem inevitable?
a. G1 b. G2 c. S d. Cytokinesis e. Cells are always preparing for division.
Continued exposure to carbon monoxide can
cause a. coma. b. cardiac arrest. c. seizures. d. death. e. all of these
What is present in a shoot apical meristem region?
I) the region of cell division II) immature buds and leaves III) cells that will give rise to the protoderm, ground meristem, and procambium A) only I B) only II C) only III D) I, II, and III
In plants with only primary growth, the epidermis is not
A. produced by the protoderm. B. covered by a waxy layer that constitutes the cuticle. C. one cell thick. D. the outer protective coating of the plant. E. covered with bark.