Science

In _____________ circulatory system the blood passes through the heart once completing one loop. (Ex- in fish)

• Double closed

• Simple closed

• Triple closed

• Open system

In _____________ circulatory system, the blood passes through the heart twice completing two loops. (Ex - vertebrates)

• Simple closed

• open closed

• Closed system

• Double closed

This type of system is the characteristics of many mollusks and arthropods.

• Simple closed

• Open circulatory system

• Closed circulatory system

• Double closed

In circulatory system, there are two types of closed system

• Double and simple

• Double and triple

• Simple and triple

• open and close

There are two types of circulatory system: open circulatory system and closed circulatory system.

• False

• True

In double closed circulatory system, the blood passes through the heart once, completing one loop.

• True

• False

_____________ is internal circulating fluid made up of water, proteins and cells.

• Heart

• Lungs

• Blood

• Liver

The tube that connects the middle ear to the back of the nose: it equalizes the pressure between the middle ear and the air outside.

• Cochlea

• Eustachian tube

• Eardrum

• Pinna

A cone - shaped piece of skin, found in the middle is called ________

These are the smallest bones in the eardrum is called _________