SCIENTIFIC METHOD
The variable that is changed in an experiment
What is the independent variable?
Maintaining stable internal conditions
What is homeostasis?
Organelle where photosynthesis happens
Chloroplast
All living and nonliving things interacting
Ecosystem
System that controls the body
Nervous system
The variable that is measured
What is the dependent variable?
Response that reverses change
What is negative feedback?
Organelle where cellular respiration happens
Mitochondria
Organism that makes its own food
Producer
System that moves blood and nutrients
Circulatory system
Variables kept the same in an experiment
What are controlled variables?
Response that increases change
What is positive feedback?
Energy molecule used by cells
ATP
Energy in food chains starts with
The Sun
System that breaks down food
Digestive system
Why do scientists repeat trials?
To improve reliability
Sweating is an example of this type of feedback
Negative feedback
Equation for cellular respiration
Glucose + O₂ → CO₂ + H₂O + ATP
Carbon moves through ecosystems in this cycle
Carbon cycle
System that allows movement
Muscular system
A testable question is called this
A scientific question
Opening and closing stomata is controlled by these cells
Guard cells
Oxygen is produced in this process
Photosynthesis
Arrows in a food web show movement of
Carbon (matter)
Brain, spinal cord, and nerves make up this system
Nervous system