Chapter 1

Question 0

Explain why science cannot answer every question.

Answer 0

Science is limited to the natural world.

Question 1

What are two definitions of science?

Answer 1

And organized way of gathering/analyzing evidence about the natural world. A body of knowledge.

Question 2

What are the goals of science?

Answer 2

To provide natural explanations for events in the natural world and to understand patterns to make predictions about future events.

Question 3

What is the scientific method?

Answer 3

An organized way to solve a problem.

Question 4

List the steps of the scientific method.

Answer 4

1. State the problem
2. Form a hypothesis
3. Set up a controlled experiment
4. Record results
5. Analyze results
6. Draw a conclusion
7. Publish your results

Question 5

How do you make an observation?

Answer 5

You gather information using your senses.

Question 6

What is quantitative data?

Answer 6

That are based on numbers.

Question 7

What is qualitative data?

Answer 7

Data based on observations and qualities.

Question 8

What is a hypothesis?

Answer 8

An educated guess.

Question 9

What is an independent variable?

Answer 9

The variable in an experiment that is being manipulated.

Question 10

What is the dependent variable?

Answer 10

The variable that changes in result of the independent variable.

Question 11

What is the group called that maintains normal conditions in an experiment?

Answer 11

The control group.

Question 12

Why is it important to use a large sample size?

Answer 12

To avoid sources of error.

Question 13

What are the only two things that your conclusion can state?

Answer 13

Whether or not your hypothesis was supported or disapproved.

Question 14

Why is it important that your research is reviewed by peers?

Answer 14

So they can check for possible error

Question 15

Briefly discuss the three scientists in the research that led to disproving spontaneous generation.

Answer 15

Francesco ready observed Magans would appear on trash. To test he took two jars of meat one was covered and 1 wasn’t. Was I was balancing he observed mold would grow in his soup after it was left out, for his experiment used to flasks of soup one was open and one was not. Louis past year he disapproved spontaneous generation by putting a flask out with soup with a curved nozzle this prevented any bacteria from getting into the soup, after a year he broke the nozzle off the flask and bacteria soon formed. He won an award for this experiment.

Question 16

Why experiments not always an option

Answer 16

Field studies where you have to go outside and you can’t control the environment, ethical considerations where you wouldn’t do human testing, and individual bias where your opinion might come into effect

Question 17

Distinguish between a hypothesis theory and law

Answer 17

This is an educated guess, a theory is when evidence from numerous experiments supports the hypothesis and a law describes an occurrence in nature that happens to always be true.

Question 18

List the characteristics of life given example of each in humans

Answer 18

They are based on DNA, they grow and develop, they respond to their environment, they reproduce, they are able to maintain a stable internal environment, they obtain and use material and energy, they’re made up of cells, and they evolve

Question 19

What are the levels of organization from largest to smallest

Answer 19

By his spirit which is the large portion of earths contain life, ecosystems which look at a specific environment and include all nonliving things in that environment, communities which looks at all living things in an environment area, population looks at a species in the area, organism which is one individual thing, organ systems which is a group of organs, organs which is one Organ, tissues which make organs,cells which make up tissues, molecules that make up cells, and Atoms the make up molecules

Question 20

What are the big ideas or themes of biology

Answer 20

Cells are the basis of life
Information and heredity
Matter and energy
Growth development and reproduction
Homeostasis
Evolution
Structure and function
Unity and diversity
Interdependence
Science as a way of knowing

Question 21

What is the measurement system used in science

Answer 21

The international system of units

Question 22

List the prefix is used in the metric system in their meaning

Answer 22

Kilo 1000, hecto 100, Deca 10, meters liters grams, Deci .1, centi .01, Milli .001