31. Invertebrates

Which of the following characteristics is common to both cnidarians and sponges?

What is the process of asexual reproduction in sponges called?

Which of the following features is characteristic of the poriferan (sponge) body plan or life history?

Sponges lack __________.

Which type of cnidarians exist only in the polyp form throughout their life cycle?

How do sponges obtain their food?

How do sponges obtain nutrients?

What are cnidocytes and what is their primary function in Cnidarians?

The choanocyte of a sponge and the nematocyst of a cnidarian both function in __________.

How do sponges obtain their food?

Through what means do coral animals capture their food?

What are the two main body forms found in cnidarians?

Which characteristic is shared by cnidarians and flatworms?

Sponges feed by __________.

Some digestion in sponges takes place in the __________.