Which group of organisms will have a coelom and a body that is segmented?

a. Cnidaria
b. Annelids
c. Planarians
d. Porifera
e. Platyhelminthes


b

Biology & Microbiology

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__________ is the wood of flowering plants and __________ is the wood of conifers

a. Hardwood; softwood b. Summer wood; spring wood c. Softwood; hardwood d. Spring wood; summer wood e. Heartwood; softwood

Biology & Microbiology

To study an organism's transcriptome by microarray, ________ is hybridized onto DNA silica chips containing gene sequences that are ________ to the sequence

a. cDNA / complementary b. cDNA / identical c. mRNA / complementary d. mRNA / identical

Biology & Microbiology

In a phylogenetic tree, positions indicating a common ancestor are referred to as:

A. branches B. nodes C. trunks D. roots E. limbs

Biology & Microbiology

Which of the following is consistent with the principle of base pairing?

(a) purine-purine (b) pyrimidine-pyrimidine (c) adenine-thymine (d) guanine-thymine

Biology & Microbiology