Sponges:
a. are deposit feeders
b. have crudely developed digestive, circulatory, respiratory and nervous systems.
c. are found only in the deep ocean.
d. have a skeletal framework.
d
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We should never assume that any aspect of culture has diffused unless we can demonstrate the path of diffusion from one culture to another
Indicate whether the statement is true or false.
The conversion of pyruvate of acetyl coenzyme A is an example of which of the following?
A) carbonation B) decarbonylation C) oxidative decarboxylation D) reductive decarboxylation
Beneath continents, rising basaltic magmas are contaminated by sediments and continental-crust rocks, altering magma compositions; the resultant andesitic-to-rhyolitic magmas have high contents of SiO2, relatively low temperatures, and high viscosity.
Answer the following statement true (T) or false (F)
All tornadoes come from rotating thunderstorms
a. True b. False