Question 1

Which of the following organisms, as shown in the images, lacks true tissues and is considered the outgroup when studying animal evolution?

Accepted Answer

The organism in image 1 (purple, tube-like structure)

Question 2

Which of the following organisms from the images is a member of the phylum Annelida and displays body segmentation?

Accepted Answer

The organism in image 6 (segmented worm)

Question 3

Which organism shown in the images is most closely related to humans based on evolutionary lineage?

Accepted Answer

The organism in image 5 (green lizard)

Question 4

Which of the following organisms from the images is a mollusc that uses a muscular foot for movement?

Accepted Answer

The organism in image 7 (snail)

Question 5

Which organism in the images is an arthropod, characterized by jointed appendages and an exoskeleton?

Accepted Answer

The organism in image 4 (lobster-like animal)

Question 6

Which of the following organisms from the images is a nematode, known for its unsegmented, cylindrical body?

Accepted Answer

The organism in image 3 (smooth, unsegmented worm)

Question 7

Which organism in the images is a flatworm, belonging to the phylum Platyhelminthes?

Accepted Answer

The organism in image 2 (flat, tan worm)

Question 8

Which of the following organisms from the images is most likely to have a mantle and a radula as part of its anatomy?

Accepted Answer

The organism in image 7 (snail)

Question 9

Which organism in the images is most likely to have a hydrostatic skeleton and move by peristalsis?

Accepted Answer

The organism in image 6 (segmented worm)

Question 10

Which of the following organisms from the images is most likely to be a filter feeder?

Accepted Answer

The organism in image 1 (purple sponge)

Guided Study: Evolution and Diversity of Invertebrates

Study Guide - Practice Questions