Share 7th Grade Science Unit 3.5 till 4.5
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What does "cannot" mean?
Means is not possible
How do you construct a dichotomous key?
Think of a way to split organisms into groups, divide each group into two, and repeat until each organism can be identified.
What does "dichotomous" mean?
Branching into two.
What is an electron microscope used for?
To see viruses because they are very small.
What is the definition of excretion?
Getting rid of waste materials, such as carbon dioxide.
What does "fertile" mean?
Being able to produce offspring.
What is the definition of growth?
A permanent increase in size.
What does "infertile" mean?
Unable to produce offspring.
What does "identical" mean?
Exactly the same.
How do biologists use keys?
To help them identify organisms.
What is special about a liger?
It is infertile and cannot reproduce.
What is the definition of movement?
The ability of organisms to change position or shape.
What is nutrition?
Feeding; taking in substances needed for growth or energy.
What is an organism?
A living thing.
What is protein?
A chemical that is a necessary part of the cells of all living things.
What does replication mean?
Making copies of itself.
