Science quiz question 2, Thanks if you help!

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

The lineage of pea plants produced round seeds for four generations. the plants that fertilized these pea plants also produced round seeds. however, in the fifth generation, the plant produced to two plants with wrinkled seeds. can that be possible?