Which characteristic is unique to cephalopods?

They have a radula.
They can live in water or on land.
They have a closed circulatory system.
They can produce pearls.

How does a lytic infection differ from a lysogenic infection?

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

What might explain the real-world results, show in the graph to the right, for one class of twenty students? check all that apply.