Chloroplasts arose by endosymbiosis of ______.
A. an aerobic bacterium
B. a photosynthetic bacterium
C. an anaerobic bacterium
D. an aerobic archaeon
E. a photosynthetic archaeon
Answer: B. a photosynthetic bacterium
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The organ system that is responsible for locomotion and maintaining posture and the generation of heat
A) Muscular
B) Reproductive
C) Digestive
D) Cardiovascular
E) Integumentary
F) Urinary
G) Respiratory
H) Skeletal
I) Nervous
J) Endocrine
K) Lymphatic
What process converts carbon dioxide and water into glucose and oxygen?
A) photosynthesis B) cellular respiration C) glycolysis D) fermentation
Why is there very little physical evidence of life from rocks of the Archaean eon?
a. Those rocks have been deeply buried in most parts of the world. b. Those rocks occupy inaccessible areas of mountainous regions. c. Those rocks have been greatly eroded in most parts of the world. d. Those rocks occupy the polar regions and are thus covered by glaciers. e. Those rocks have been deposited in oceanic trenches deep in the oceans.
bolus
What will be an ideal response?