Vertebrate colonization of terrestrial habitats
increased dramatically with the evolution of
a. lungs.
b. paired appendages.
c. shelled egg.
d. the four-chambered heart.
e. scales
C
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In contrast to a predator, a parasite usually ____
a. does not kill their host or does not kill it immediately b. kills its host c. is a short-term visitor d. is larger than its host e. provides some benefit to the host
Considering the traditional view of ecological succession, which plant would most likely be a pioneer species in a
primary succession event?
a. an oak tree that produces acorns dispersed by squirrels b. a snapdragon flower pollinated by bees c. a dandelion that produces seeds asexually, which are dispersed by the wind d. a perennial species such as Douglas fir trees e. a birch tree
An embryo was exposed to a chemical early in its development. At birth, there is chromosomal damage to the circulatory system linked to the chemical exposure. What other organ systems should be examined for the same type of damage?
What will be an ideal response?
What three features define eusociality? (Check three.)
A. insect species only B. overlap of generations C. haplodiploidy D. cooperative brood care E. reproduction during a mating flight F. reproductive division of labor G. colony resides in an enclosed hive or nest