Lower Invertebrates - Porifera and Cnidaria

Urinating on a cnidarian sting is:

Which criteria separates kingdom animalia from kingdom fungi?

Which matches are correct?

Which plane is shown at B?

How many tissue layers do sponges have?

Motility is advantageous as it allows for:

The structure at A is _____ while B is _____.

Which type of symmetry is shown at "A"?

Which of the following is not a cell type seen in phylum porifera?

What criteria do lower invertebrates share?

In the diagram below, arrows represent _____ while the diagram shows a _____ life cyle.

A to B shows increased likelihood of _____ while X to Y shows increased likelihood of _____.

From the sponge's _____ we infer that animals evolved from protist-like ancestors?

Sponges manufacture toxic substances because they are:

In phylum cnidaria, sexual reproduction is _____ while asexual is _____.

Which plane is shown at C?

Which forms of asexual reproduction are seen in sponges?

Which type of symmetry allows for cephalization?

Transformation:

The frontal plane is found at:

The cells shown in the video are:

Which type of symmetry is shown at "B"?

Which plane is shown at A?

The primary difference between a nerve net and a nervous system is:

Which is a characteristic of an animal?

Which surface is indicated by "A"?

Which surface is indicated by "D"?

Which of the following is an organism with both male and female reproductive structures?

_____ is shown at "A" while _____ is shown at "B".

The polyp and medusa life cycle is an example of:

In this course, which of the following are considered lower invertebrates ?

The transverse plane is found at:

Which of the following involves shedding of gametes into open water?

Which of the following is a life cycle with more than one body form?

Which matches are correct?

Which surface is indicated by "C"?

Gathering of nerve tissue and sense organs is defined as:

Cnidarians are the first organisms to have:

Which type of symmetry is shown at "C"?

Which surface is indicated by "B"?