Unit 1: Basic Biological Principles Flashcards
observation
what you notice;based on fact
inference
assumption;not fact based
hypothesis
proposed explanation
controlled experiment
factors kept the same for all experiments
IV
manipulated; what you change
DV
what you measure
control group
not exposed to IV
qualitative data
worded data
quantitative data
numbered data
experimental group
exposed to IV
Why is it important for an experiment to be controlled?
to make sure the results are from the experiment and not just random
Why might a hypothesis be revised? Why might an experiment be repeated?
it might be changed after it is proved wrong
it might be repeated to ensure results
dna
genetic code
stimulus
signal the organisms respond to
sexual reproduction
2 parents make a genetically combined child
asexual reproduction
1 parent makes a child identical to it
homeostasis
maintaining internal conditions
metabolism
all reactions need for life
unicellular
made of one cell
multicellular
made of many cells
describe characteristics all living things share
made of cells- unicellular or multicellular
has dna- all living things have a genetic code
responds to stimuli- changes with environment
evolve- change over time
reproduce- create more living things
homeostasis- maintain internal temp
obtain nutrients and make energy- metabolism, break down food and bucks muscle
grow and develop- grow in size and shape, develop in life stages
kingdom
2nd largest classification group
domain
largest classifying group, 3 diff domains
heterotroph
eats other for energy
