Author Question: Circulatory systems in molluscs A) are open in all species of molluscs. B) are (Read 550 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?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

For a complete list of videos, visit our video library