Living Things
What are all living things made up of?
Cells
What is energy?
The ability to do work
Newton's first Law of Motion?
An object at rest stays at rest
Multicellular organisms are made up of?
Many cells
The nervous is built from specialized long, thin cells called?
Neurons
Biotic factors are?
Living or once living things
How does work happen?
Work happens when we apply a force to an object over a distance
Another of Newton's First Law of Motion?
An object in motion remains in motion in the same direction and at the same speed unless an unbalanced force acts on it.
Cells are organized into what?
Tissues, organs, and organ systems
What fuel do cars rely on?
Producers are organisms that what?
Make their own food
The energy of motion is called?
Kinetic energy
What factors affect Newton's Law when riding a bicycle?
Wind resistance and friction
For quick responses that occur within seconds, animals use their?
Nervous System
The human machine runs on a variety of delicious fuels: what are they?
Delicious foods
What is a food web?
Many different overlapping food chains
The energy becomes stored in the system?
potential energy
Is force needed to keep the spaceship moving when the engines are turned off?
No
For slower responses that take minutes or longer periods of time?
They use hormones
What type of nutrients do food contain?
Carbohydrates, fats, and proteins
All energy on Earth comes from what?
The sun
On the top shelf, the box has potential energy, what does it turn into when the box falls?
Kinetic energy
A moving object will continue to move forever in a straight line?
As long as no unbalanced force is applied to it
Hormones are also involved in controlling the internal environment of the animal, a process called?
Homeostasis
What is the bodies system that has evolved to convert the complex foods we eat into simpler substances?
Digestive System