Question | Answer |
When a scientist classifies a newly discovered plant, its _______ is studied. | phylogeny |
When a bright light shines in your eyes, you close your eyelids quickly. What is the bright light? | a stimulus |
________ is a trait of all organisms. | Homeostasis |
You want to find out how much water an aquarium tank can hold. Which SI measurement unit would you use? | liters |
When you touch a hot pan on the stove with your hand, you quickly move your hand away. How do you describe your hand's movement? | It is a reaction |
You want to weigh a large dog. Which SI measurement unit would you use? | kilograms |
What is the process in which new organisms replace those that die? | reproduction |
The part of an experiment that can change is the ________. | variable |
Which of these is true of scientific methods? | The problem needs to be stated at the beginning of the process. |
What is the length of time an organism is expected to live? | a life span |
Which person devised an animal classification system 2,000 years ago? | Aristotle |
A theory can explain multiple ______________. | hypotheses |
Which of these is a tool used to identify organisms? | a dichotomous key |
The theory that supposes that living things came from nonliving things is ________. | spontaneous generation |
Which of these scientists studies animals? | a zoologist |
In order to draw conclusions about a scientific problem, what is true? | A scientist can accept the hypothesis |
How do many-celled organisms grow? | They make more cells |