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1) the particular place where an organism lives is its
a. life zone.
b. niche.
c. ecosystem.
d. community.
e. habitat.
2) the part of the brain that controls the anterior pituitary gland secretions is the
a. medulla.
b. thalamus.
c. cerebral cortex.
d. hypothalamus.
e. cerebellum.
3) the followingpicture depicts which of the following changes in chromosome
structure.
a. deletion
b. duplication
c. translocation
d. aneuploidy
4) which of the following features were required for the the evolution of the
amphibians?
a. notochord, vertebrae, jaws, bony skeleton, lungs and 4 limbs
b. notochord, vertebrae, jaws, bony skeleton, lungs and amniotic eggs
c. notochord, vertebrae, jaws, cartilaginous skeleton, lungs and 4 limbs
d. notochord, mammary glands, jaws, bony skeleton, lungs and 4 limbs
5) the proper order of embryonic development is
a. cleavage-morula-blastula-gastrula.
b. morula-cleavage-blastula-gastrula.
c. blastula-cleavage-morula-gastrula.
d. gastrula-cleavage-blastula-morula.
6) which is not a feature found in protozoans?
a. heterotrophic
b. multicellular
c. usually motile
d. eukaryotic
7) oxygen is transported in blood most efficiently
a. by being dissolved in the plasma.
b. by chemical conversion to water.
c. by combining with hemoglobin.
d. by combining with carbon dioxide to form bicarbonate ions.
e. as a free oxygen ion or radical.
8) which of the following is the organ of exchange between the mother and fetus?
a. chorion
b. amnion
c. placenta
d. yolk sac
e. allantois
9) the _____ of the retina, which is responsible for acute vision, has densely packed
cone cells.
a. tectorial membrane
b. otolith
c. fovea centralis
d. blind spot
e. ampulla
10) during which stage of meiosis does crossing-over occur?
a. prophase i of meiosis i
b. anaphase i of meiosis ii
c. telophase i of meiosis i
d. prophase ii of meiosis ii
e. anaphase ii of meiosis i
11) in order to train an individual through classical conditioning the researcher must
a. pair the presentation of two different stimuli together.
b. present the subject with one stimulus at a time.
c. use a reward to encourage a specific behavior.
d. use punishment to achieve a specific behavioral outcome.
12) which of the following species is both a keystone species and a flagship species?
a. grizzly bear
b. panda
c. beaver
d. dolphin
e. alligator
13) for fatty acids to enter the citric acid cycle of aerobic respiration, the fatty acids
must be:
a. deaminated.
b. combined with glycerol.
c. combined with atp.
d. converted to acetyl groups.
e. converted into five-carbon sugars.
14) bilaterally symmetrical animals
a. tend to be active and move forward.
b. tend to exhibit cephalization.
c. have right and left sides when cut longitudinally.
d. all of the choices are correct.
15) which of the following organisms is mismatched with their organs of excretion?
a. planarians - flame cells
b. earthworms - nephridia
c. malpighian tubules - reptiles
d. kidneys - humans
