basics of bio

Question 1

What does the study of biology include?

Answer 1

The living world

Question 2

Define ‘experiment’

Answer 2

testing a hypothesis

Question 3

Define ‘hypothesis’

Answer 3

testable educated guess

Question 4

Define ‘Analysis’

Answer 4

using data to draw conclusions

Question 5

Define ‘Conclusion’

Answer 5

accepting or rejecting a hypothesis

Question 6

Define ‘Variable’

Answer 6

a factor in an experiment

Question 7

Define ‘independent variable’

Answer 7

The manipulated variable, what is changed on purpose “I changed it”

Question 8

Define ‘dependent variable’

Answer 8

The responding variable, what is measured as a result of the IV

Question 9

Define ‘Control group’

Answer 9

The group that is normal, unchanged, and is compared to the experimental groups.

Question 10

What is the benefit of performing a controlled experiment?.

Answer 10

It isolates one factor in a hypothesis that will be tested in the experiment

Question 11

How is an independent variable different from a dependent variable?.

Answer 11

while Independent is changed, dependent measures results of that change

Question 12

What is a quantitative observation?

Answer 12

Using numbers; ex. 15 feet

Question 13

What is a qualitative observation?

Answer 13

Using 5 senses, descriptions; ex. pink, smooth

Question 14

Why is it important to use a control group in an experiment?

Answer 14

To assure valid results, you need to compare data to data of control group

Question 15

What are the characteristics of life (what characteristics do all living things share)? List and describe each characteristic.

Answer 15

1) built off of Cells (uni or multicellular), 2) response-(changing due to stimulus), 3) homeostasis (maintaining balance), 4)growth and development, 5) Evolve/Adapt (change over time), 6) has DNA (universal genetic code) 7) reproduction (asexual or sexual)
schredg

Question 16

What conditions are necessary for an individual organism to survive? What conditions are necessary for a population of organisms to survive?

Answer 16

maintaining homeostasis and the characteristics of life — Enough of the population (not all) reproduce

Question 17

What does homeostasis mean?

Answer 17

maintaining balance

Question 18

What happens if homeostasis is disrupted

Answer 18

death

Question 19

what is the basic unit of life

Answer 19

cells

Question 20

Define ‘evolution’

Answer 20

change over time

Question 21

What is the biosphere? What does the biosphere include?

Answer 21

The biosphere is the parts of the world where life exists. It includes atmosphere, land, water

Question 22

what are the parts of a microscope

Answer 22

Ocular (eyepiece), low, mid, and high power objectives, arm, base, stage, stage clips, revolving nosepiece, diaphragm, light source.
Calculating total magnification: multiply the eyepiece (ocular) by the objective power. WHAT THIS EVEN MEAN?

Question 23

How does one properly make a wet mount slide? How should the coverslip be lowered onto the microscope slide?

Answer 23

Obtain slide, place specimen, drop of water, coverslip – The cover slip should be dropped slowly at a 45 degree angle to prevent bubbles

Question 24

What is the cell theory?

Answer 24

A set of statements describing cells as a characteristic of life.

Question 25

What three things cell theory state?

Answer 25

Cells are the basic unit of life, all living things have cells, new cells, come from cells.

Question 26

What invention was key to the development of the cell theory?

Answer 26

microscope

Question 27

What are the steps of the scientific method

Answer 27

1)identify the problem 2)research the problem 3)Make a hypothesis 4) test the hypothesis 5) observe and record 6) arrive at a conclusion