Unit 1: The Characteristics of LIfe

Question 1

Steps of the Scientific Method

Answer 1

1. Observation
2. Question
3. Form a Hypothesis
4. Collect and Analyze Data
5. make a graph
6. draw a valid conclusion

Question 2

independent variable

Answer 2

the variable that you change on purpose

Question 3

dependent variable

Answer 3

the controlled variable (the one that changes in the experiment)

Question 4

control group

Answer 4

the group that is not changed

Question 5

experimental group

Answer 5

the group that is purposely changed

Question 6

constant

Answer 6

not changing

Question 7

How many variables should one test at a time in an experiment?

Answer 7

one

Question 8

When should you design a data table?

Answer 8

after you get your data/results

Question 9

egg + sperm = zygote

Answer 9

reproduction

Question 10

mitochondria convert the food you consume into usable energy for cells

Answer 10

metabolism

Question 11

pelvic and leg remnants provide evidence that whales used to be land animals

Answer 11

evolution

Question 12

many students gain 15 lbs. during their first year of college

Answer 12

growth and development

Question 13

“i have my dad’s eyes!”

Answer 13

genetics

Question 14

when you walk into bright sunlight, your pupils get smaller

Answer 14

adaptation

Question 15

most protists are unicellular, but a few ,like kelp, are multicellular

Answer 15

cells

Question 16

when your body temperature rises to high, you sweat in order to cool off

Answer 16

homeostasis

Question 17

In an experiment, you want to measure the effect of different amount of oxygen on the rate of yeast growth. What is the independent variable??

Answer 17

the different amounts of oxygen

Question 18

what is the study of organisms and how they interact with their environment??

Answer 18

ecology

Question 19

what is the study of plants??

Answer 19

botany

Question 20

what is the study of heredity??

Answer 20

genetics

Question 21

what is the study of animals??

Answer 21

zoology

Question 22

in a line graph, time always goes on what axis??

Answer 22

the x-axis

Question 23

what kind of graph would you use to compare the fat content in fast food burgers??

Answer 23

bar graph

Question 24

interdependence in nature

Answer 24

how living things work together into a biosphere (“living planet”)

Question 25

evolution

Answer 25

change in living things through time; it explains inherited similarities as well as the diversity of life

Question 26

genetic code

Answer 26

common to every organism on Earth and is carried in DNA; it’s copied and passed from parent to offspring

Question 27

matter

Answer 27

serves nutrients to build body structure

Question 28

energy

Answer 28

fuels the process of life (the sun……)

Question 29

science

Answer 29

the way of knowing things, not a list of facts

Question 30

characteristics of living things

Answer 30

they all reproduce, have a genetic code, grow and develop, obtains and uses materials & energy, respond to the environment (adapt), maintain stable internal environment (homeostasis), and change overtime (evolution).