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Final Review: Chapter 1
Based on the 2008 Mcdougal Littel Biology Textbook
18
Biology
9th Grade
01/16/2010

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Cards

Term
What is a species?
Definition
A group of organisms that can reproduce by interbreeding among themselves.
Term
What is a biosphere?
Definition
All the living things and all the places they are found on Earth.
Term
Biodiversity is greater closer to the equator or the poles?
Definition
The Equator. This is because the equator is warmer, and more things are able to survive in consistently warm temperature.
Term
What is the most basic unit of life?
Definition
A cell
Term
True or false. An organism is any living thing.
Definition
True.
Term
What are the certain characteristics that organisms share?
Definition
They are made up of cells, have the need for energy, respond to their environment, and reproduce and develop.
Term
What is metabolism?
Definition
The chemical processes that build or break down materials.
Term
What is an ecosystem?
Definition
A physical environment with different species that interact with one another and with nonliving things.
Term
True or false. Structure and function are related in biology.
Definition
True. For example, the structure of red blood cells allows it to function as the cell which transports oxygen.
Term
What are you maintaining when you drink water when you are thirsty, shiver when you are cold, or sweat when you are hot?
Definition
Homeostasis- the maintenance of constant internal conditions in an organism.
Term
What is evolution?
Definition
The change in living things over time.
Term
True or false. There is both unity and diversity in biology.
Definition
True. (Evolution in one of the main causes of unity and diversity.)
Term
What are the steps in scientific thinking?
Definition
Observation, forming a hypothesis, testing the hypothesis, analyzing data, and evaluating results.
Term
What is a hypothesis?
Definition
A proposed answer for a scientific question.
Term
How is the independent variable different from the dependent variable?
Definition
The independent variable is the variable that is changed, or manipulated. The dependent variable is observed and measured.
Term
Conditions that do not change during an experiment are called?
Definition
Constants.
Term
What is the use of a control group?
Definition
A control group is used so that scientists can compare their findings to what is supposed to be normal.
Term
True or false. Biotechnology, the use and application of living things and biological processes, gives us many benefits but doesn't raise any issues.
Definition
False. Biotechnology raises many issues. It also presents many unanswered questions.
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