ch 1 (intro. to bio) Flashcards Preview

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Flashcards in ch 1 (intro. to bio) Deck (35)
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1
Q

observation

A

process of gathering information about event in a careful onginized way

2
Q

DNA

A

nucleic acid the contains the sugar deoxyribose

3
Q

evolution

A

change over time

4
Q

hypothesis

A

a logical explanation based on prior knowledge

5
Q

metabolism

A

sum of all chemical reactions within an organism

6
Q

homeostatis

A

process by which orgnism maintains stable internal environment

7
Q

inference

A

a scientific explanation for a set of observations

8
Q

controlled variable

A

a factor in an experiment that remains the same

9
Q

spontaneous gen.

A

hypothesis that states that life can arise from nonliving matter

10
Q

stimulus

A

the signal to which an organism responds

11
Q

responding variable

A

a factor in an expirement that a scientist wants to observe , it changes in responce to manipulated variable

12
Q

controlled expirement

A

allows scientist to isolate and test single varible

13
Q

cell specilization

A

seprate roles for each type of cell in a multicellular organism

14
Q

manipulated variable

A

Factors in an experiment that the scientist purposely changes

15
Q

redi

A

scientist who Tested the hypothesis that flies produce magnets, he used meat in jars in the uncovered jar maggots appeared in the cover maggots did not

16
Q

pasture

A

boiled broth w/ swan like curved neck

17
Q

needham

A

heated gravy in pen flasks claimed spontaneous generation dose accrue

18
Q

levels of study

A

Biosphere ecosystem community
population . organisms group of cells
cell molecules

19
Q

classification group

A

kingdom phylum class . order family

genus species

20
Q

characteristics of living things

A

made up of cells, reproduce, based on genetic code, grow and develope, change over time, obtain and use energy respond to environment , maintain internal balnce

21
Q

two types of data

A

quantaive and qualative

22
Q

unicellular

A

1cell

23
Q

multicellular

A

many cells

24
Q

asextual

A

1 parent genetacly identical

25
Q

sexual

A

2 parents , genetically diffrent organisms

26
Q

heterotrophic

A

eats other organisms to survive

27
Q

autotropich

A

makes its own food

28
Q

x and y axis in expiriment

A

x: independent y: dependent

29
Q

compund microscope

A

allows light to pass through image

30
Q

sem

A

scaning electon micro.

31
Q

tem

A

transmistion electron microscope

32
Q

prokaryote

A

no nuclouse

33
Q

eukaryotic

A

has nucleus

34
Q

6 kingdoms

A

archaebacteria . eubacteria . protista . fungi . plantae . animalia

35
Q

theory

A

A well tested explanation that unifies a broad range of observations