The formation of soil by gradually breaking rock into smaller particles by biological, chemical, and
physical processes is known as:
a. erosion.
b. inorganic synthesis.
c. cation exchange.
d. salinization.
e. weathering.
E
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What is the immediate product of meiosis in plants?
a. diploids b. gametes c. spores d. sporophytes e. somatic cells
In the late 1920s, a mutation occurred in many silver fox farms around the world. The fox farms that
sold expensive furs were proud of the quality of their furs, and each advertised that it had the best and most pure breed of all the fox farms. The new mutations produced a "platinum" coat pattern that was commercially desirable, so the farms crossed them to get more. The results of their breeding experiments were as follows: (1) silver ? silver ? all silver offspring; (2) silver ? platinum ? equal numbers of silver and platinum; (3) platinum ? platinum ? 2 platinum for each silver offspring. Explain. What will be an ideal response?
During the spring, newly emerging leaves are sugar ________ and tree roots are sugar ________
A) sources; sources B) sources; sinks C) sinks; sinks D) sinks; sources
Leeches are in the phylum:
A) Annelida. B) Cnidaria. C) Mollusca. D) Platyhelminthes. E) Nematoda.