This phylum of vascular, seed-bearing plants includes pines, spruces, firs, hemlocks, junipers,
cypresses, and redwoods. Most of them are evergreens that form woody reproductive cones.
a. Cycadophyta
b. Anthophyta
c. Gnetophyta
d. Coniferophyta
e. Ginkgophyta
D
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When carbon dioxide is absorbed into water, the solution becomes more
(a) acidic. (b) basic. (c) warm. (d) red.
Net primary productivity represents:a
the rate at which energy is captured during photosynthesis. b. the amount of biomass in excess of that needed to support plant cell respiration. c. the amount of carbon dioxide produced by plants. d. plant reproduction per unit area per unit time. e. energy production in an area per unit time.
Which of the following statements is correct regarding archaea cells?
A) Archaea cells are found only in extreme environments. B) Archaea cells are found everywhere on Earth, just like bacteria cells. C) Bacteria and archaea cells are both in the same domain in the classification of life. D) Archaea cells contain organelles just like eukaryotic cells do.
If an element has an atomic number of 6 and a mass number of 14, how many neutrons does it have?
A. 6 B. 8 C. 14 D. 7 E. impossible to determine