FREE ZOOLOGY ONLINE TEST – 05

Which cells in testes produce testosterone?

Exoskeleton of arthropods is made up of:

The longest bone in the human body is:

The term "linkage" was first described by:

Which chamber of the human heart pumps deoxygenated blood to the lungs?

Nematocysts are found in:

The gap between two neurons is called:

In an ecological pyramid, secondary consumers occupy which trophic level?

The site of fertilization in human females is:

AIDS is caused by: