#Question id: 8856
#Unit 9. Diversity of Life Forms
Which of these can be observed in the
mesohyl of various undisturbed sponges at one time or another?
1. amoebocytes
2. spicules
3. spongin
4. zygotes
5. choanocytes
#Question id: 8857
#Unit 9. Diversity of Life Forms
Which chemical is synthesized by some sponges and acts as an antibiotic
#Question id: 8858
#Unit 9. Diversity of Life Forms
Which of these factors, when used to label
the horizontal axis of the graph in Figure 33.1, would account most directly
for the shape of the plot?
#Question id: 8859
#Unit 9. Diversity of Life Forms
In terms of food capture, which sponge cell is most similar to the cnidocyte of a Cnidarian
#Question id: 8860
#Unit 9. Diversity of Life Forms
A radially symmetrical animal that has two embryonic tissue layers probably belongs to which phylum?
#Question id: 8861
#Unit 9. Diversity of Life Forms
Which of the following is true of members of the phylum Cnidaria?