____ are dome-shaped structures composed of layers of early cells and sediments
a. Meteorites
b. Protocells
c. Stromatolites
d. Hydrothermal fossils
e. Protofossils
ANSWER: c
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The Chi-square test is used to prove that a hypothesis is correct
Indicate whether the statement is true or false
Rhizobium
A. fix nitrogen inside nodules on the roots of legumes. B. resemble fungi. C. produce antibiotics. D. produce a gall in plants.
The ____ form of Plasmodium is transferred to humans through the bite of an infected mosquito
a. merozoite b. gametocyte c. cyst d. sporozoite e. spore
The white matter differs from gray matter in that ____
a. white matter is found in the brain, and gray matter is found in the spinal cord b. white matter consists of bundles of myelin-sheathed axons, and gray matter consists of cell bodies, dendrites, and neuroglial cells c. white matter transmits sensory information, and gray matter transmits motor information white matter consists of bundles of myelin-sheathed axons, and gray matter consists of cell bodies, dendrites, and neuroglial cells d. white matter is associated with the sympathetic nervous system, and gray matter is associated with the parasympathetic nervous system e. white matter contains mostly interneuronal cell bodies and grey matter does not