🌡️ Homeostasis
When you are cold, your body begins to shiver. What is your body trying to maintain?
Temperature
What is the sum of all chemical reactions occurring in an organism?
Metabolism
A scientist notices that a plant is turning yellow. What is this an example of?
Observation
The variable that is measured is called what?
Dependent variable
Organisms use energy through what characteristic of life?
Metabolism
A lizard moves into the shade when its body gets too warm. What is this helping maintain?
Body temperature
Why do organisms need metabolism?
Energy
A testable explanation for an observation is called what?
Hypothesis
A student changes the amount of sunlight plants receive. What is the independent variable?
Sunlight
Maintaining stable internal conditions is called what?
Homeostasis
Your kidneys adjust the amount of water released in urine. What process does this help maintain?
Water balance
What process breaks down food to release usable energy?
Digestion
Data consisting of numbers and measurements is called what?
Quantitative data
A student measures plant height after changing sunlight. What is the dependent variable?
Plant height
An organism becoming larger or developing is called what?
Growth
Your pupils become smaller in bright light. What is being regulated?
Light exposure
Plants use sunlight to make glucose through what process?
Photosynthesis
A hypothesis is not supported by the results. What should the scientist do?
Revise hypothesis
In the bacteria experiment, what would be the dependent variable?
Bacterial growth
What molecule contains hereditary information in living organisms?
DNA
Your heart rate increases during exercise to deliver more oxygen. What is being regulated?
Oxygen levels
What molecule provides usable energy for most cellular processes?
ATP
A scientist repeats an experiment several times. What does this improve?
Reliability
A student changes water amount and measures plant growth. Which variable is intentionally changed?
Water amount
A single-celled organism takes in nutrients, uses energy, and reproduces. Which characteristic of life does this demonstrate?
All characteristics