A student reads that Cnidarians have two layers of tissue during development. Which answer describes a possible tissue layer?

A)deuterostome

B)ectoderm

C)radial

D)pseudocoelom

If the dimensions of a cube-shaped cell with a length,height, and width of 1 micrometer were to double, what would be the cell's new ratio of surface area to volume? a.3 to 1 b.4 to 3 c.1 to 2 d1 to 6

Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation

Which is the most dominant generation in a liverwort