evolution
what is the main theme in biology?
Evolution
what is chemistry?
the basis of life
what are carbohydrates?
simple sugars
what is Centi?
1/100th of a unit
what is an experiment used for?
to test the hypothesis, gather data, analyze, and interpret.
what is an example of natural selection?
traits from offspring in reproduction
what is matter made up of?
atoms
what is starch?
a complex carbohydrate
what is Mili?
1/100th of a unit
independent variable
variable being changed or manipulated
what is true about natural selection?
It is not random.
what are the 4 elements that make up 97% of our body mass?
oxygen, carbon, hydrogen, and nitrogen.
what are proteins?
amino acids join together by peptide bonds.
what is kilo?
1,000 of a unit
dependent variable
variable being measured or observed
what can be altered in artificial selection?
plants and animals
is H2o polar or nonpolar?
polar
how do we find lipids?
must be dissolved in a nonpolar solution, ethanol. We use 111.
how do we find mass?
mass= volume(density)
confounding variable
may affect dependent variable.
what did Jonathan say about species?
not all species will live forever.
what is electronegativity?
how much an atom wants or pulls electrons.
what is the negative control and positive control?
negative: water
positive: solutions that contain the substance the chemical tests respond to.
what the mass of an object that is 12.343 grams?
12.3 grams
what type of graph would be used to present the cost of a 4-unit course at MiraCosta college over the last 30 years and why?
a line graph.
graphing data over a period of time.