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Ch. 1B #1-17

When a scientist classifies a newly discovered plant, its ____________ is studied. pylogeny
What is the source of energy for plants? the Sun.
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 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 __________. a 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
Which of these is true? 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, which is true? A scientist can accept the hypothesis.
Created by: gmei