Cyanobacteria, milkweed plants, and oak trees are all considered:
A. primary producers.
B. primary consumers.
C. secondary consumers.
D. tertiary consumers.
E. decomposers.
A
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What will be an ideal response?
Nuclear transfer is a preferred method of cloning over embryo splitting because it ____
a. is less technical b. is more natural c. results in a larger number of cloned offspring d. produces both male and female offspring from the same clone e. uses haploid nuclei
Probes can come from a variety of sources, such as ____________________
a. single-stranded RNA templates b. histones from other species c. artificially engineered gene sequences d. related genes from other species e. unrelated genes from other species
What is the ultimate source of energy for almost all organisms?
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