Multiple Choice
Which of the following is NOT found in at least some sponges?
A) Spicules of calcium carbonate
B) Spicules of silica
C) Spicules of fibrous protein
D) Spongin,a fibrous protein Skeletal elements of sponges include calcareous and siliceous spicules and the protein,spongin.
Correct Answer:
Verified
Correct Answer:
Verified
Q7: The flagellated cells embedded in the mesohyl
Q8: Internal buds of freshwater sponges that can
Q9: The simplest of canal systems is found
Q10: If a sponge is fragmented and cells
Q11: In glass sponges,archaeocytes fuse their pseudopodia to
Q13: Concerning producing larger organisms without cellular differentiation,<br>A)nature
Q14: The outer thin,flat,epithelial-like cells that cover the
Q15: Specialized archaeocytes that secrete large quantities of
Q16: Molecular data support the hypotheses that metazoans
Q17: The largest impact that the loss of