How do protostomes differ from deuterostomes?
a. Protostomes are diploblastic.
b. Protostomes have radial symmetry.
c. Protostomes undergo spiral cleavage during development.
d. The first opening that develops in protostomes is the anus.
e. Protostomes undergo indeterminate cleavage during development
c
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Match the following items with the correct phrases.
_______1. Crenation of red blood cells would occur if they were placed into a(n) __________ solution. _______2. Adding large quantities of salt or sugar to various types of foods is a way of preserving them. If bacteria should enter such foods, they would find themselves in a(n) __________ environment. _______3. If red blood cells were placed into a(n) __________ solution, they might hemolyze. a. hypertonic b. hypotonic c. isotonic d. gin and tonic
During a fight, a boxer received a hard blow to the side of his head. As a result, the boxer was unable to recognize and
interpret words. Which specific area of the brain must have been damaged during the fight?
a. the cortex of the cerebellum b. Broca's area c. the corpus callosum d. Wernicke's area e. the brain stem
What basic information does a demographer need to know to predict a species population size through
time?
What will be an ideal response?The effects of elevated atmospheric CO2 concentrations
A. have the potential to alter the nutritional status of plants. B. allow the plant to use O2 more efficiently in photosynthesis. C. have the potential to allow herbivores to eat less plant matter. D. cause an increase in rubisco production. E. have no effect on nutrient levels found in plant leaves.