Author Question: Circulatory systems in molluscs A) are open in all species of molluscs. B) are (Read 553 times)

luvbio

  • Hero Member
  • *****
  • Posts: 623
Circulatory systems in molluscs
A)  are open in all species of molluscs.
B)  are closed in all species of molluscs.
C)  are open in species of large-sized molluscs and are closed in species of small-sized molluscs.
D)  are open in species of small-sized molluscs and are closed in species of large-sized molluscs.
E)  are open or closed without regard to body size.



coco

  • Hero Member
  • *****
  • Posts: 739

Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

For a complete list of videos, visit our video library