Sensory adaptation means that:
a. a stimulus has been committed to sense memory so responses will be automatic
b. the sensory system stops paying attention to constant signals
c. sensory input does not lead to stereotyped behavior
d. sensory systems are no longer evolving
e. a sense has been improved by a new trait
b
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In the citric acid cycle, succinate is oxidized to form
A. fumarate. B. oxaloacetate. C. malate. D. succinate. E. citrate.
Plants and algae most recently shared a common ancestor 480 million years ago, and plants colonized land shortly after that. In sexual reproduction, an alga simply releases gametes into the water, and the current carries the sex cells to another individual. What adaptation arose in gymnosperms and angiosperms that allowed reproduction on dry land and over great distances?
A. development of stomata B. production of lignin C. development of vascular tissue D. production of pollen E. production of a cuticle
Aristotle’s ideas on the natural world greatly influenced ____, who believed that the “great chain of being” extended
from ____.
a. Asian beliefs; lifeless forms to humans b. Hindu systems of thought; plants to spiritual beings c. tribal beliefs; lifeless forms to spiritual beings d. later European thinkers; plants to spiritual beings e. Thomas Malthus’ treatise on population; lifeless forms to mammals
Genotype
What will be an ideal response?