Invertebrates

Through what means do coral animals capture their food?

The ________ is the middle matter of a sponge and is composed of a ________.

In the phylum Cnidaria, jellies are members of the ________ clade and corals are members of the ________ clade.

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

Cephalopods are the only molluscs __________.

The sponge cell type that is ________ and can become other sponge cell types is the _________.

_________, account for ________ of all known animal species.

Which of the following is true about the phylum Cnidaria?

The three main body parts of the phylum Mollusca are a ___________.

Which of the following is/are true about polychaete worms?

The two phyla that have characteristic U-shaped alimentary canals and a crown of ciliated tentacles are the ________ and the ________.

Characteristic of the clade Lophotrochozoa are features such as a lophophore, which is a(n) _________, and a trochophore, which is a(n) _________.

Animal species that are threatened by extinction are primarily in the phylum ________.

Tapeworms are highly specialized worms that make their living as endoparasites. To which of the following phyla do the tapeworms belong?

Some species of rotifers undergo parthenogenesis, which means that __________.

Stages in the complete metamorphosis of arthropods include all of the following except the ________ stage.

In arthropods, molting is necessary because __________.

The two lineages of the phylum Platyhelminthes are the ________ and the ________.

Some digestion in sponges takes place in the __________.

Evolutionary adaptations used by plants and animals for maximizing surface area include all of the following except _________.

Invertebrate deuterstomes that are bilaterally symmetrical as juveniles but have radial symmetry as adults are called _________.

_________ are characteristic of jellies.

Annelids __________.

_______ is a compound produced by sponges that can kill ________.

A major characteristic of arthropods is __________.

During typical earthworm reproduction __________.

The proglottids of a tapeworm contain an elaborate _____ system