In triploblastic organisms, the inner layer of cells forms the muscles of the body wall

1.True
2.False


2

Biology & Microbiology

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In breast tumors the presence of multiple copies of the HER2 gene is correlated with a more aggressive cancer

Which of the following methods would allow comparison of different cancer cells to determine which have more copies of the HER-2 gene? A. PCR with primers that contain restriction sites B. RT-PCR C. quantitative PCR D. PCR with conventional primers E. All of these choices are correct.

Biology & Microbiology

The five-toed limb of stem reptiles was modified into a limb suitable for digging. This is an example of ____

a. convergent evolution b. morphological divergence c. analogous evolution d. morphological convergence e. distal modification

Biology & Microbiology

In terms of male parental care, the prevalence in animals groups goes in this order: _____ (most prevalent to least)

a. birds - mammals - fishes b. mammals - birds - fishes c. mammals - fishes - birds d. reptiles - mammals - fishes e. mammals - fishes - birds

Biology & Microbiology

The trait of connected earlobes is considered a

a. beneficial trait. b. harmful trait. c. neutral trait. d. dominant trait. e. significant trait.

Biology & Microbiology