study of life
smallest unit of matter
2+ joined atoms
molecules of life include
Carbs, proteins, lipids, nucleic acids
molecules of life
made by all living things and only living things
smallest unit that can live and reproduce alone
organized cells that interact together to perform a specific job or function
type of tissue: blood
examples of tissues
epithelial, muscle, connective
made of two+ tissues interacting to perform a specific job or function
organs interacting, physically, chemically or both in a task.
individual made of different types of cells
group of single or multi celled individuals of same species occupying specific area
all populations of all species occupying specific area
community interacting w its environment
all regions of earth’s waters, crust and atmosphere that hold organisms
how many species are named?
how many species likely exist?
who invented 2pt naming system
two part naming system
genus + species
grouping of species w certain traits in common
Domain, kingdom, phylum, class, order, family, genus, species
bacteria, archaea, eukarya
bacteria and archaea
what were the prokaryotic kingdoms originally grouped as?
protists, fungi, plants, animals
spot where life branches off in tree
most recent common ancestor
Which of the two (prokaryotes or eukaryotes) have a nucleus
where is prokaryotic dna contained
freefloating instead of nuclear membrane
Which of the two (prokaryotes or eukaryotes) has a smaller cell?
Prokaryotic have smaller and simpler cells, while eukaryotic larger and many live as multicellular
Which of the two (prokaryotes or eukaryotes) have membrane bound organelles?
Which of the two (prokaryotes or eukaryotes) have cell membranes?
Which of the two (prokaryotes or eukaryotes) have cytoplasm?
Which of the two (prokaryotes or eukaryotes) have ribosomes?
examples of prokaryotes
first step scientific method
second step scientific method
develop hypothesis and make prediction (if/then statement)
testable explanation of process
statement of what you should find in nature
third step scientific method
test carried out under controlled conditions and manipulated by researchers
fourth step scientific method
repeat the tests/devise new ones if hypothesis went through. if not, go back to step 2.
fifth step scientific method
analyze/report test results and conclusion
hypothesis not disproved over course of years–researchers can’t find evidence disproving it, low probability of being wrong
Components of experiment
variable, independent and dependent, control group, quantitative reports
feature of object/event may differ over time
x, input, feature that experimenter manipulates
y, output, feature affected by x
diversity in life
way in which we function
unity in life
cells, DNA, life functions
Big Idea 1
process of evolution drives diversity and unity of life
What drives evolution?
organisms best adapted to their environment are the only ones tht survive
capacity to do work
Big Idea 2
Biological systems use free energy + molecular building blocks to grow, reproduce, + maintain dynamic homeostasis
Big Idea 3
Living systems store, retrieve, transmit and respond to info essential to life processes thru DNA
deoxyribonucleic acid, a nucleic acid that holds info about building proteins
structural + functional roles vital to survival
where does the organism inherit DNA
how do parents transmit DNA to offspring
Big Idea 4
Bio systems interact, and these systems + their interactions possess complex properties
how do organisms sense and respond to changes
structures that detect stimuli
specific kinds of energy, pressure, light, heat, sound
b. The independent variable (X-axis)
c. The dependant variable (Y-axis)
d. Scale for each variable
e. Legend (or key)