LEC 8/25 INTRO

Question 1

What % of species is known and unknown

Answer 1

5% of species is known and 95% of species is unknown

Question 2

What is science 2 limits

Answer 2

1. only study natural world, perceived by our sense or using instruments
2. it can ONLY look for NATURAL explanations

Question 3

science or not: Limited to the natural world?

Answer 3

Science: natural phenomena w/ natural causes

Question 4

SorN: Observable

Answer 4

Science: based on events perceived by our senses

Question 5

SorN: Testable

Answer 5

Science: ideas must be able to generate expectations

Question 6

SorN: Measurable

Answer 6

Science: quantifiable

Question 7

SorN: Repeatable

Answer 7

Science: by different people w/ similar results

Question 8

SorN: modifiable

Answer 8

S: not fixed for all time, not based on dogma

Question 9

SorN: open to change

Answer 9

S: new evidence can modify or replace concepts

Question 10

SorN: strong theories inferred from solid evidence

Answer 10

S: not just a list of facts but explanations of observations

Question 11

SorN: made stronger by difft lines of evidence

Answer 11

S: independent unrelated fields of study point to same explanations

Question 12

SorN: a search for understanding

Answer 12

S: how the universe works why it is that way it is?

Question 13

SorN: proves or disproves ideas

Answer 13

N: science accepts or rejects ideas

Question 14

SorN: based on belief of faith

Answer 14

N: based on objective evidence

Question 15

SorN: based on authority

Answer 15

N: experts can be in error

Question 16

SorN: a search for truth

Answer 16

N: truth can mean difft things to difft people

Question 17

SorN: fair

Answer 17

N: whatever is, is

Question 18

SorN: Democratic

Answer 18

N: there is no voting in science, not based on popularity but evidence

Question 19

SorN: able to solve all problems

Answer 19

N: limited to the natural world

Question 20

SorN: a collection of facts

Answer 20

N: not just facts but also theories

Question 21

all living organisms share a set of common characteristics..

Answer 21

are composed of one or more cells

Question 22

prokaryotes

Answer 22

smaller, simpler, most do not have membrane-enclosed organelles are bacteria and archaea

Question 23

Eukaryotes

Answer 23

larger, more complex, membrane-enclosed organelles are: protists, plants, fungi, animals

Question 24

organism

Answer 24

an individual living thing

Question 25

organ

Answer 25

composed of several difft types of tissue and specialized for a particular fxn

Question 26

tissue

Answer 26

group of cells w/ common structure and fxn

Question 27

cell

Answer 27

the smallest unit of living matter, fxn independently, enclosed in a semi-permeable membrane

Question 28

molecule

Answer 28

two or more atoms chemically bonded together

Question 29

atom

Answer 29

the smallest COMPONENT of an element that maintains the elements chemical properties

Question 30

characteristics of living organism 1

Answer 30

obtain energy from their environment to support metabolism

Question 31

characteristics of living organism 2

Answer 31

maintain homeostasis

Question 32

characteristics of living organism 3

Answer 32

reproduce using DNA

Question 33

genome

Answer 33

organisms complete set of DNA, nucleus

Question 34

Chromosome

Answer 34

one or more unique pieces of DNA

Question 35

gene

Answer 35

a specific sequence of DNA, info necessary to produce all or part of a protein

Question 36

characteristics of living organism 4

Answer 36

are capable of evolving as a group