Homeostasis and Levels of Organization

If the environment gets cold, we will often shiver (shake) in order to:

• keep body temperature the same as the external temperature

• decrease body temperature

• increase body temperature

• regulate blood pressure

Homeostasis in the human body is often maintained by a: 

• neutral feedback loop 
• solar feedback loop
• positive feedback loop
• negative feedback loop

Tags

NGSS.HS-LS1-3

What type of feedback loop is shown?

• negative
• neutral 
• positive

Tags

NGSS.HS-LS1-3

Negative Feedback Loops:

• increase effects

• stop small changes from getting larger

• are initiated during childbirth

• are found only in plants

The two types of feedback systems that help organisms maintain homeostasis are:

• positive and negative 
• receptor and effector
• static and dynamic
• minor and major

Tags

NGSS.HS-LS1-3

When a baby pushes on the cervix in order to be born, it causes an increase in hormones that help the pushing. This is an example of:

• negative feedback loop

• positive feedback loop

When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

The ___________ is the basic unit of life

• organ
• cell
• atom
• tissue

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Organs and tissues that perform the same function is called _____________?

• cells
• tissues 
• organ system
• organs

Tags

NGSS.HS-LS1-2

Two or more tissues that perform a similar function are called_____. (Examples include the heart, lungs or stomach)

• cells

• tissues

• organs

• organ system