Study Biology 1-1 Flash Cards

 
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Biology 1-1

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smaller things are found in ____
bigger systems.
homeostatis;
-receptor --feeling pain/illness
-control center- brain- course of action
-effector- thing that fixes it.
sem and tem must be _______
becuase they are electron miceroscopes
dehydrated and preserved.
scanning electron microscopes SEMS!
scan narrow beam back and forth, 3-d images
transmission electron microscopes
beams of electrons travel through specimmin to see inside cell
name some biologist
zooologist- study animals
paleontologist- ancient life
living things
1. cells
2. reproduce
3. based on genetic code
4. evolve
5. use energy and matterial
6. respond to enviornment
7. have homeostatis
8. grow and devolop
scientific method
1. define problem
2. observe.
3. hypothesis
4. controled experment
5. evaluate results
6. conclusion.
POHERC.
paster
final gravy person.
pasturiez things.
saved french sour wine industry and silkworm disease.
said that if only air could get in: no microorganisms.
l. spallanzani
claimed needham didn't heat enough.
bioled it for "real"
1. jar sealed _____ nothing.
2. jar open----microorganisms.
biogensis. living produces living.
needham
killed bacteria in gravy by boiling it and it came back days later:
non-living produces living.
abiogensis.
aton van leeuwenhoek
discovered animalcules.
tiny objects.
francesco redi
flies produce maggots
made controlled expiremtn
suggested biogensis
true or false:
scientists don't make decisions. elected officals have final word.
true. scientists make suggestions.
"BASIC NATURAL LAWS ____ ALL EVENTS"
govern
system
collection of processes and parts that interact
scienctists must be ______ _____________ _______
skeptical:
open to new hypothesis
evaluate hypothesis
conclusion
based on inference (interpretation) of data
hypothesis must be able to be ______. You should be able to have a _____ _____ or ______ _____ _____/
hypothesis must be able to be tested.
you should be able to have a controlled expirement or be able to collect more data.
data makes:
inference...which is interpredations.
scientists look for ______ and ______.
patterns...connections
GOAL OF SCIENCE:
"to investigate, understand, explan and predict our NATURAL world.
cell fractination
seperate cell parts.
1. cells broken into pieces in special blender
2. brocken pieces added to liquid in tube
3. tube in CENTRIFUGE spins
cell culture
single cell onto dish containing nutrient solution; cell is able to reporoduce so that a group of cells (CELL CULTURE) devolpes from original cell
electron microscope
beams of electrons!!! NOT LIGHT____
produce 1,000X more detailed than compound light microscopes
compound light microscope
alow light to pass through specim and use 2 lenses to produce image
microscope
magnification device
metric system
decimal measurment of units.
based on multiples of 10.
evolution
CHANGE
homeostatis
give example:
internal thermostat
- cold: shiver
hot: sweat
stimulus

external
internal
signal to which organism responds
external: outside
internal: inside
metabolism
when an organism uses chemical reactions to break down or build up material.
asexual reproduction
single cell into 2: it divides in 1/2
sexual reproduction
cells from 2 parents produce first cell of new organisms
cell
collection of matterial that is alive and enclosed
biology
science that studies living things
theory
a well supported hypothesis
responding variable
the variable that changes because of manipulated variable
manipulated variable
variable that is diliberatly changed
controlled expirement
when only one variable is tested
spontaneous generation
abiogensis- the idea life could arise from non life.
ambiguous
difficult to understand
techknowledgy
utilizing science
hypothesis
reasonable explination.
inference
interpertation based on prior knowledge
qualitive data
descriptions
quantitive data
counted data
data
info gathered from observation
observation
gathering information
science
organized way of using evidence to learn about natural world
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