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SAT Biology (Ecological) → SAT Biology practice questions from 61 to 70
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61. Monocotyledons and dicotyledons are the two subdivisions of flowering plants. Monocotyledons are distinguished from dicotyledons because monocots possess
(A) floral structures in multiples of fours and fives
(B) long taproots and parallel venation in their leaves
(C) netted leaf venation and floral structures in multiples of three
(D) parallel leaf venation and fibrous roots
(E) floral structures in multiples of three and long taproots
62. Which of the following statements is true concerning plants that utilize C4 photosynthesis?
(A) They only open their stomates at night
(B) They use bundle sheath cells to separate the Calvin cycle from the atmosphere
(C) They use rubisco (ribulose bisphosphate carboxylase oxygenase) to capture carbon dioxide from the atmosphere
(D) They use lenticels exclusively for gaseous exchange in order to conserve water
(E) All of the above are true
63. Neurotransmitters have as their effectors cells such as
(A) nerves
(B) muscles
(C) glands
(D) all of the above
(E) none of the above
64. Neurotransmitters cross the synapse after being released from the
(A) dendrites
(B) axons
(C) cell bodies
(D) all of the above
(E) none of the above
65. Which of the following biomes is correctly paired with its description?
(A) tundra coniferous trees in a cold, dry climate
(B) taiga cold areas with low, mat-like vegetation
(C) tropical deciduous forests-the biome with the most precipitation
(D) chaparral-wetlands with many shrubs and ruminants
(E) savanna-grassland with three distinct climates, based mainly on rain
66. Mimicry always involves a model and a mimic as well as a dupe or signal receiver (the organism the mimic is trying to fool). Which of the following depicts Batesian mimicry?
(A) a walking stick (a herbivore) sitting on a branch of a tree
(B) a rat snake (nonpoisonous) that looks like a poisonous species
(C) an oppossum playing possum
(D) a spider that looks like an ant
(E) a flounder that blends in with the bottom to avoid being eaten
67. Two organisms that occupy many of the same niches are most likely
(A) competitors
(B) predator-prey
(C) host-parasite
(D) mutualistic partners
(E) commensalistic partners
68. Lynn Margulis’s endosymbiotant theory is supported by the fact(s) that
(A) mitochondrial DNA is more like that of bacteria than the nuclear DNA in human cells
(B) chloroplasts replicate on their own time schedule, not under nuclear control
(C) mitochondria and chloroplasts are about the same size as prokaryotes
(D) all of the above
(E) none of the above
69. People who suffer from meningitis are having an inflammation around their
(A) coronary arteries
(B) pleural cavities
(C) membranes of the spinal cord
(D) kidneys
(E) intestine
70. Which is the correct sequence of events during embryonic development?
(A) cleavage-differentiation-fertilization-gastrulation
(B) fertilization-differentiation-cleavage-gastrulation
(C) differentiation-fertilization-gastrulation-cleavage
(D) fertilization-cleavage-gastrulation-differentiation
(E) fertilization-gastrulation-differentiation-cleavage
ANSWERS: SAT BIOLOGY PRACTICE QUESTIONS
61. D
62. B
63. D
64. B
65. E
66. B
67. A
68. D
69. C
70. B