Answer:
Because they are triploblastic ( Triblastica ).
Explanation:
Their body is composed of endoderm, mesoderm and ectoderm. While Cnidaria are Diblastica, so they are composed only from two layers: endoderm and ectoderm.
In addition larvae of Echinoderms are bilaterally symmetrical and they become nearly-radial only as adults.
Answer: C) genetic diversity
Explainiton : Crossing over is essential for the normal segregation of chromosomes during meiosis. Crossing over also accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical.
Answer:
What structure? Tell me and I'll come back and edit this answer to help!
Explanation:
Plant cells are what build/make-up the plants although the main purpose is Photosynthesis
Photosynthesis happens in the Chloroplasts of the plant cell and it is the process that plants get food, by taking advantage of Sunlight, Carbon Dioxide, and Water