Even when it is cold outside, the human body maintains an internal temperature of 37 °C. Which term describes the maintenance of balanced internal condition?

• mitosis

• homeostasis

• endocytosis

• photosynthesis

Tags

NGSS.MS-LS1-3

A rat approaches a piece of rotting fruit, smells it, takes a small bite, and then runs away. Which statement best explains the reason for the rat’s behavior? 

• The rat runs away from the fruit to process the new sensory information.
• Sensory receptors in the rat’s whiskers respond to input about the texture of the fruit.
•                 The rat’s chemical receptors detect chemicals in the fruit that alert the rat to possible danger.
• Information gathered by the rat’s auditory receptors signal that the environment around the fruit is not safe.

Tags

NGSS.MS-LS1-8

This diagram shows the steps involved when chemical receptors in the nose detect different scents. Which statement describes the next two steps in the process? 

• Nerves pass the signal to the brain, where it is processed.
• The scent is carried by red blood cells to the brain in blood
• Hormones carry the scent through the body to be interpreted
• If the scent is familiar, it causes a memory to become activated.

One of the characteristics of living things is that they respond to external changes in their environment so that their internal environment stays as stable as possible. Name an environmental change that an animal must respond to in order to keep a stable internal environment. 

• birds have feathers
• the environments gets very cold or very hot
• an earthquake happens
• pollution

Tags

NGSS.MS-LS1-8

Explain what might happen to an organism if it could not adapt to an external change.

• It will have offspring that adapt
• It will die
• It will attack other animals
• It will seek out new life and new civilizations

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-5

What are three types of sensory receptors?

• chemical, formical and sensical

• chemical, electrical and kinetic

• chemical, mechanical and electromagnetic

• chemical, potential and processing

Tags

NGSS.MS-LS1-8

A baby moose is born and, within hours, can stand, run and walk. Is this learned behavior or innate behavior?

• learned
• innate

A dog remembers that if he tries to attack a skunk, he will get sprayed and smell really awful. Is this learned behavior or innate behavior?

• innate
• learned

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.MS-LS1-8

NGSS.MS-PS3-4

The maintenance of an organism’s internal environment is called:

• compensating
• homeostasis
• balancing
• routine

Tags

NGSS.HS-LS1-3