Macronutrients are defined as those elements:
A. required in certain relative amounts in the plant
B. usually needed, but not always available
C. required in relatively large amounts
D. only taken up through the soil
E. such as nitrogen and calcium
C. required in relatively large amounts
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Sodium has 11 electrons arranged in three energy levels. In order to become stable, sodium forms an ion with:
A. no charge. B. -1 charge. C. +8 charge. D. +1 charge. E. -8 charge.
Answer the following statements true (T) or false (F)
1. The animal kingdom is a monophyletic grouping. 2. The terms "dorsal" and "oral" are synonyms. 3. A pseudocoelom is a cavity that develops into the coelom during embryonic development. 4. A hydrostatic skeleton has no bones or cartilage.
Photosynthesis Photosynthesis
a) is NOT dependent on chlorophyll. b) does NOT involve oxidation-reduction reactions. c) produces water and carbon dioxide. d) produces glucose and oxygen. e) None of the answers are correct.
__________ relay signals between neurons. Fill in the blank(s) with the appropriate word(s)