Section 1
Section 2
Section 3
Section 4
Vocabulary
100
Scientific methods help answer _____
What is questions
100
____ take in materials from their surroundings and use them in complex ways
What is cells
100
It is estimated that ___ is about 4.6 billion years old
What is Earth
100
Some scientists propose that before organisms are grouped into kingdoms,they should be placed in larger groups called
What is domains
100
The two-word naming system that Linnaeus used to name the various species
What is binomial nomenclature
200
A theory usually explains many
What is hypotheses
200
The trait of all living things
What is homeostasis
200
When organisms die substances in their bodies are broken down and released into the ___ or air
What is soil
200
The evolutionary history of an organism,or how it has changed over time.
What is phylogeny
200
The smallest unit of an organism that carries on the functions of life
What is a cell
300
You measure your classroom in this
What is meters
300
Many bacteria do not need ____ to release the energy that is found in their food
What is oxygen
300
The theory that living things come only from other living things
What is biogenesis
300
A Greek named Aristotle decided any organism could be classified as either a plant or ____
What is an animal
300
Any living thing
What is an organism
400
A _____ _____ is a statement about how things work in nature that seem to be true all the time
Scientific law
400
____ is important for all living things
What is water
400
The idea that living things come from nonliving things
What is spontaneous generations
400
A ____ key is a detailed list of identifying characteristics that include scientific names
What is dichotomous
400
A group of similar species
What is a genus
500
These are the steps of the _____ state the problem,gather information,form a hypothesis,perform an experiment,analyze data,draw conclusions
What is the scientific method
500
Organisms use ____ to balance the amounts of water lost with the amounts taken in
What is homeostasis
500
In 1924 a Russian scientist named Alexander Oparian suggested that Earths early atmosphere had no ___
What is oxygen
500
A classification system commonly used today groups organisms into six ____
What is kingdoms
500
The evolutionary history of an organism or how it has changed over time
What is phylogeny
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