Chapter 1

Question 1

Characteristics for something to be considered life

Answer 1

1. Organized
2. Requires material/energy
3. Maintains an internal environment
4. Responds
5. Reproduces/develops
6. Evolutionary history

Question 2

Atoms

Answer 2

Building blocks of everything, individual elements (ex: sodium Na)

Question 3

Molecules

Answer 3

Combination of multiple atoms (ex: NaCl table salt)

Question 4

Cells

Answer 4

Combination of lots of molecules. If organized the right way you get a living organism (ex: smallest unit of life)

Question 5

Tissue

Answer 5

Collection of cells for a common function

Question 6

Organ

Answer 6

Collection of tissues for a common function (ex: heart/lungs)

Question 7

Organ system

Answer 7

Group of organs for a common function (ex: digestive system= stomach, small, and large intestine. Function is digesting food)

Question 8

Organism

Answer 8

Collection of organ systems (ex: humans)

Question 9

Species

Answer 9

Organisms defined by breeding (ex: cats/dogs)

Question 10

Population

Answer 10

Group of one species together (ex: Fresno)

Question 11

Community

Answer 11

Interacting populations in an area (ex: lion king)

Question 12

Ecosystem

Answer 12

Communities within their environment

Question 13

Biosphere

Answer 13

Collection of all ecosystems (ex: earth)

Question 14

Biology

Answer 14

Study of life and their interactions with the environment

Question 15

Organic molecules of life

Answer 15

1. Carbohydrates
2. Proteins
3. Lipids
4. Nucleic acids

Question 16

Metabolism

Answer 16

Chemical reaction that uses energy

Question 17

Homeostasis

Answer 17

Body keeping constant internal environment

Question 18

2 types of stimuli

Answer 18

1. External stimuli- outside the body (ex: touch hot stove)
2. Internal stimuli- inside body (ex: high blood pressure)

Question 19

Reproduce

Answer 19

Passing on of genetic information

Question 20

Growth

Answer 20

Increase of size/number of size (ex: physical, like height)

Question 21

Development

Answer 21

All changes from fertilization to death

Question 22

2 types of reproduction

Answer 22

1. Sexual- mixture of genetic material to form new organism
2. Asexual- splits into two parts (ex: bacteria)

Question 23

DNA

Answer 23

Genetic information
Contains hereditary information
Directs structure and function of cells
Contains genes (specific traits)

Question 24

Mutation

Answer 24

Variations in genes (can be beneficial, evolution)

Question 25

Evolution

Answer 25

How population changes through time

Question 26

Adjustment

Answer 26

Have control over (ex: cold weather you out on a jacket)

Question 27

Adaptation

Answer 27

Over time, populations begins to have variation (evolution)

Question 28

Science

Answer 28

Knowing of the natural world

Question 29

Scientific method

Answer 29

1. Observation 2. Hypothesis 3. Experimentation 4. Conclusion 5. Repeat

Question 30

Observation

Answer 30

Watching of the natural world Sense Instruments (microscope) Research

Question 31

Hypothesis

Answer 31

Explanation of observing a natural event

Question 32

Inductive reasoning

Answer 32

Conclusion based off observation (ex: you see it happen)

Question 33

Deductive reasoning

Answer 33

Indirect observation to make a conclusion (ex: dog bowl is empty dog must have ate the food)

Question 34

Conclusion

Answer 34

Scientist make a conclusion based on the data and results of the experiment

Question 35

Scientific theory

Answer 35

Explanations for how the wold works Not ideas, they are backed up by experimentation and evidence

Question 36

Law/principle

Answer 36

Accepted by a majority of scientist (ex: law of gravity)