Show:
Hierarchy of Life
Body Systems
Homeostasis and Feedback
Characteristics of Living Things
Potpourri
100

The smallest unit of matter that cannot be broken down by chemical reaction.

What is an Atom?

100

Relax and take a deep breath with this body system that is responsible for gas exchange.

What is the Respiratory System?

100

It may not sound nice, but this type of feedback helps organisms maintain homeostasis by opposing a change in internal conditions.

What is Negative Feedback?

100

Associated with growth, this process allows organisms to change shape, size, and function over their lifetimes.

What is Development?

100

A mathematical, visual, or conceptual representation of a phenomenon.

What is a Model?

200

An organism needs at least one of these functional units capable of all life processes.

What is a cell?

200

The name of this protective system is derived from a Latin word meaning "to cover."

What is the Integumentary System?

200
The level at which an organism works to maintain a variable physiological state. 98.6 degrees Fahrenheit is the ________ for internal human body temperature

What is a Set Point?

200

The sum of all chemical reactions that keep an organism alive. Animals fuel theirs with food.

What is Metabolism?

200

An explanation for a phenomena that accounts for all known data and natural laws.

What is a Scientific Theory?
300

A complete individual life form. 

What is an organism?

300
Finger-like projections in the small intestine increase surface area for absorbing nutrients processed by this body system.

What is the Digestive System?

300
Contractions during childbirth increase in frequency and intensity because of the amplifying effect of this type of feedback.

What is Positive Feedback?

300

A reaction to changes in the environment.

What is Response to Stimuli?

300
The movement of particles in a fluid from an area of high concentration to an area of low concentration.

What is Diffusion?

400

A group of organs that work together to carry out complex functions.

What is an organ system?

400

The spleen hangs out near the stomach, but it is considered part of this organ system that helps maintain wellness.

What is the Immune System?

400

A structure that detects changes in the environment and signals a control center in the brain.

What is a Sensor?

400
As living things adapt to changing environmental conditions, their populations do this over time.

What is Evolve?

400

I have the solution! 

Oh wait, I only have the solvent...I need to add this type of substance in order to make a solution. 

What is a Solute?

500

Proteins and carbohydrates are examples of this level of organization.

What are Macromolecules?

500

The brain sends signals to the glands that make up this system which regulates processes ranging from development to digestion.

What is the Endocrine System?

500

A body mechanism that works to alter a physiological variable in response to a change in the environment.

What is an Effector?

500

All living things and even some viruses have this special macromolecule that stores genetic information.

What is DNA?

500

Osmosis involves the movement of this chemical compound across a semi-permeable membrane.

What is Water (H2O)?