BIO pt 3- Hierarchy and Body Systems

Question 1

What is the simplest level in the hierarchy of structure in animals?

Answer 1

cells- The smallest unit that can perform the functions of life. Example: Heart cell.

Question 2

What are tissues in the hierarchy of structure in animals?

Answer 2

A group of specialized cells that share the same structure and function. Example: Cardiac tissue.

Question 3

What are organs in the hierarchy of structure in animals?

Answer 3

Several types of tissues working together to perform a specific function. Example: Heart.

Question 4

What are organ systems in the hierarchy of structure in animals?

Answer 4

A group of tissues and organs working together to perform a specific function. Example: Circulatory system.

Question 5

What is the most complex level in the hierarchy of structure in animals?

Answer 5

organism- An individual living being. Example: Human.