Question

Cnidarians have ___ germ layers and a(n) ___ digestive tract.

1) 2 : complete
2) 2 : incomplete
3) 3 : incomplete
4) 3 : complete

Answer 1

Cnidarians have two germ layers and an incomplete digestive tract.

Step-by-step explanation:

Cnidarians have two germ layers and a(n) incomplete digestive tract.

1. 2 : complete
2. 2 : incomplete
3. 3 : incomplete
4. 3 : complete

Cnidarians, such as jellyfish and corals, have a simple body plan with two main cell layers: the ectoderm and the endoderm. The cells in the endoderm line the digestive cavity called the coelenteron. This incomplete digestive system has a single opening that serves as both the mouth and the anus.