The most diverse eukaryotic superkingdom is:
A. Archaeplastida.
B. Alveolata.
C. Opisthokonta.
D. Amoebozoa.
C
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Flowering plants use animals or wind to transfer ________ between flowers.
A. microspores B. megaspores C. ovules D. seeds E. pollen
After ovulation, the ovum remains fertile for about __________
a. 1 hour b. 6 hours c. 24 hours d. 2 days e. 3 days
Photosynthesis is essential to animal life because it provides
A. CO2 for respiration. B. O2. C. organic molecules. D. Both b and c are correct.
A primary advantage of using integrated nutrient management compared to inorganic chemical fertilizers is that
A. chemical fertilizers are not soluble in water. B. chemical fertilizers break down very slowly. C. less organic fertilizer is needed than chemical fertilizers. D. only organic fertilizers contain micronutrients. E. organic fertilizers release nutrients more slowly.