« previous next »

Author Question: Which of the following are entirely, or partly, composed of calcium carbonate? A (Read 1483 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
on: Aug 5, 2013
Which of the following are entirely, or partly, composed of calcium carbonate?
A) spicules of siliceous sponges
B) coral animals' exoskeletons
C) molluscs' mantles
D) insects' cuticles
E) nematodes' cuticles


camila

  • Hero Member
  • *****
  • Posts: 705
Reply #1 on: Aug 8, 2013
Answer has to be B, 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.


Laurenleakan

  • Sr. Member
  • ****
  • Posts: 309
Reply #3 on: Feb 18, 2015
Thank you!


« previous next »
 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Calcium Calcium
L-type calcium channel: (a) Calcium channel opens when an action potential passes across the ... L-type calcium channel: (a) Calcium channel opens when an action potential passes across the ...
Composed Salad Dish Composed Salad Dish
Calcium metabolism in osteoporosis Calcium metabolism in osteoporosis
Which outcome corresponds to the combination of silver and carbonate ions shown in the ... Which outcome corresponds to the combination of silver and carbonate ions shown in the ...
Role of calcium in muscle contraction Role of calcium in muscle contraction
Video: Muscular Dystrophy

For a complete list of videos, visit our video library