Scientific Method
what is a dependent variable
the thing being measured in an experiment.
what is the current era we live in
cenozoic
an example of this relationship would be a tick and a deer
parasitism
what is the difference between a light novel and a manga
a light novel only has words while a manga is similar to a comic book where it is predominantly pictures with word boxes.
what is the second step
form a hypothesis
how old is earth?
4.6-4.8 billion years old
natural selection works on______ while evolution works on_____.
1. populations
2. species
what is the last day of school this semester?
December 20th
are you finished with your work once you get to the last step?
no, there are always human error so formal experiments need to be ran multiple times. if you get similar results the experiment shows how accurate your hypothesis is.
this law states that older fossils are located deeper in the rock table while newer fossils are closer to the surface.
the law of superposition.
what is commensalism?
a type of relationship where one organism benefits while the other is unaffected.
what was BA football's final record this season?
3-8
find the independent and dependent variable
The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead.
I: different levels of lead in the gasoline
D: amount of pollution produced.
what is the fossil record and is it complete?
the fossil record helps detail what species used to live on earth throughout time. it is not complete because fossilization requires very specific things to happen to the corpse after death.
name 2 types of defense mechanisms that prey species use to avoid capture.
camoflauge and mimicry
how tall is coach wood (has to be the exact number)
6 foot 5 inches
name all steps of the scientific method in order
1. start with a question
2. form a hypothesis
3. design and perform an experiment
4. gather and collect data
5. form a conclusion
name the 5 eras. how do we describe them?
newest to oldest:
1. Cenozoic- the age of humans
2. Mesozoic- the age of dinosaurs/ land animals
3. Paleozoic- the age of fish/ ocean organisms
4. Precambrian- no life record during this time
5. hadean- inhospitable and covered by oceans of lava
how do new species form?
either through geographic isolation, mutations, or natural selection favoring specific traits in a species
640,000 years ago.