Endocrine System

Endocrine glands secrete _

• Hormones

• Neurotransmitters

• A wide range of chemical substances

What is the main function of the endocrine system?

• It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.

• It creates electrical messages that are sent around the body to maintain homeostasis.

• It maintains the correct level of oxygen in the body to maintain homeostasis.

• It releases waste from the body to maintain homeostasis.

Tags

NGSS.HS-LS1-3

Which of the following are chemicals that travel in the blood and cause changes in different parts of the body?

• Hormones

• Glands

• Parathyroid

• Adrenal Gland

Tags

NGSS.HS-LS1-3

An organ that produces secretions called hormones is known as a :

• chemical
• gland
• hormone
• duct

The process by which an organism’s internal environment is kept stable in spite of changes in the external environment.

• Positive Feedback

• Negative Feedback

• Homeostasis

• Targeted Cells

Tags

NGSS.HS-LS1-3

Hormone regulation operates under which type of feedback mechanism?

• positive feedback

• negative feedback

• zero feedback

• Hormones are not regulated

Tags

NGSS.HS-LS1-3

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

• keep body temperature the same as the external temperature
• decrease body temperature
• increase body temperature
• regulate blood pressure

Tags

NGSS.HS-LS1-3

Feedback loops are important because they allow organisms and the environment to

• change based on new inputs

• fall apart

• change based on new outputs

• maintain balance

Tags

NGSS.HS-LS1-3

NGSS.HS-LS2-6