A Scientist Is Studying Some Developing Eggs from an Ocean

question 31

Multiple Choice

A scientist is studying some developing eggs from an ocean sample.The early embryos have divided only a few times,and all cells look identical.When the scientist carefully removes half the cells from an embryo,both clumps of cells are able to complete development,forming twins.The eggs can be identified as

• A)deuterostomes.
• B)protostomes.
• C)crustaceans.
• D)cnidarians.
• E)echinoderms.