« previous next »

Author Question: A sponge's structural materials (spicules, spongin) are manufactured by the A) p (Read 856 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
on: Aug 5, 2013
A sponge's structural materials (spicules, spongin) are manufactured by the
A) pore cells.
B) epidermal cells.
C) choanocytes.
D) amoebocytes.


camila

  • Hero Member
  • *****
  • Posts: 705
Reply #1 on: Aug 8, 2013
Answer has to be D, trust me!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Charlie

  • Hero Member
  • *****
  • Posts: 640
Reply #2 on: Oct 18, 2013
Wonderful, you were right, thank you so much.


« previous next »
 

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Structural hierarchy in the molecular organization of cells Structural hierarchy in the molecular organization of cells
Structural changes in a multisubunit protein undergoing cooperative binding to ligand Structural changes in a multisubunit protein undergoing cooperative binding to ligand
Absorption & Stripping Design Random packing materials Absorption & Stripping Design Random packing materials
Written materials can be helpful for the older adult. Written materials can be helpful for the older adult.
Packaging materials like zip-close bags, egg cartons, and takeout containers should be thrown away Packaging materials like zip-close bags, egg cartons, and takeout containers should be thrown away
Sponge releasing sperm Sponge releasing sperm
Video: Contraction cycle of a sarcomere

For a complete list of videos, visit our video library