Which of the common molecules normally found in the body plays a role in the aging process,forming irreversible cross-linkages between proteins, and contributing to the stiffness and loss of elasticity we may experience with aging?
a) glucose b) phospholipids c) water d) NaCl e) ATP
a) glucose
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What two evolutionary agents are most responsible for decreases in genetic variation in a population?
What will be an ideal response?
This biome is situated around the equator and boasts the greatest biodiversity of any biome
A. temperate grassland B. chaparral C. savanna D. deciduous forest E. rain forest
Which of the following is a disadvantage of an
exoskeleton?
a. It does not provide as efficient a muscle anchorage as an endoskeleton. b. It allows for excess water loss. c. It must be shed for its owner to grow. d. It is not flexible enough to allow a full range of movements. e. It is not able to absorb pigments for sufficient camouflage
What are mycorrhizae?
a. connecting points between branching roots b. symbiotic associations between a fungus and plant roots c. specialized root hairs d. localized swellings in plant roots filled with nitrogen-fixing bacteria