CH1

Question 1

Name the three major themes in Biology.

Answer 1

interdependence of organisms, evolution of life, and diversity and unity of life

Question 2

Name and observe the four steps (in order) to the scientific method as described in class.

Answer 2

1. observe: question what your problem is and why it could be happening
2. hypothesis: make a logical, educated guess as to what could be causing the problem.
3. prediction: predict what will happen to the experiment.
4. experiment: test out your theory.

Question 3

What’s the difference between growth and development?

Answer 3

Growth relates to size and number, while development relates to becoming more wise, having an expansion of functionality.

Question 4

Define independent variable. Example?

Answer 4

The variable that is being changed. An example of this could be the temperature of water.

Question 5

Define dependent variable. Example?

Answer 5

The variable that is changing depending on the independent variable. An example of this could be the heartbeat of a worm.

Question 6

Which axis is used to graph the dependent variable?

Answer 6

y-axis

Question 7

Name the three domains.

Answer 7

1. bacteria
2. archaea
3. eukarya

Question 8

Name and describe the two different types of electron microscopes (include how they work and their maximum magnification).

Answer 8

1. SEM: (scanning electron microscope) scans electrons on the surface. has a magnification of 100,000x
2. TEM: (transmission electron microscope) transmits electrons through a thin slice(of an area of the subject). has a magnification of 200,000x

Question 9

Name the 7 characteristics of living things.

Answer 9

1. Metabolism
2. Reproduction
3. Growth
4. Organization of cells
5. Response to stimuli
6. Interdependence between organisms
7. Homeostasis

Question 10

When focusing a microscope, which knob is first?

Answer 10

Red.

Question 11

On a microscope, what is the ocular?

Answer 11

The eye piece.

Question 12

On a microscope, where does the slide(of the “thing” you are looking at) go?

Answer 12

On the stage.

Question 13

Identify three objective lenses, and the total magnification when using each one.

Answer 13

1. LOW (red); 10x
2. MED (yellow); 40x
3. HIGH (blue); 400x

Question 14

Level of organization of the cells in living things.

atom, _____ , _____ , …

Answer 14

atom, molecule, organelle, cell, tissue, organ, organ system, body.