Unicellular or colonial eukaryotic organisms that are either autotrophic or heterotrophic belong to the Kingdom
A. Plantae.
B. Animalia.
C. Protista.
D. Bacteria.
C. Protista.
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Which of the following statements is false?
a. The greatest amount of photosynthesis takes place in the palisade mesophyll. b. There are more stomata on the upper epidermis of most leaves than on the lower epidermis. c. The palisade mesophyll is more densely packed than the spongy mesophyll. d. The surface area of the root system is greater than that of the shoot system. e. Photosynthesis occurs in both the spongy and palisade mesophyll
What is the difference in the bonding between alpha-helix and beta sheets?
A. Sulfur bridges allow the spring like turns in alpha helices and van der Waals dispersion allows the folds in beta sheets. B. Hydrogen bonding occurs between the amides of adjacent chains in the sheets instead of between the amides in different parts of the helices. C. Hydrogen bonding always occurs in the alpha helices but only occurs in parallel beta sheets. D. Hydrogen bonding between the amides only occurs in one of these two types of secondary structures.
Corn, peppers, tomatoes, and cucumbers all contain seeds and are derived from the ovary of a flowering plant. Therefore, in scientific terms, they are
A) fruits. B) vegetables. C) sporophytes. D) seeds.
Retroviruses have the following characteristics, except
A. reverse transcriptase. B. DNA genome. C. envelope. D. glycoprotein spikes. E. viral genes that integrate into the host genome.