intro: process of science

many crustaceans (shrimp, lobsters, crayfish) use their tails to swim, but crabs have reduced tails that curl under their shells and are not used in swimming. this is an example of what?

• convergent evolution

• natural selection

• homologous structure

• vestigial trait

Tags

NGSS.MS-LS4-2

you find yourself standing next to a rose bush. which of the following do you and the rosh bush have in common?

• nothing

• no nucleus membrane

• both eukaryotic

• both prokaryotic

Tags

NGSS.HS-LS4-1

in science, theories are...

• educated guess

• absolute/unchangeable

• known fact

• strongly supported explanation for a set of data/observations

smallest unit of biological structure that is "living"

• organ

• organelle

• cell

• macromolecule

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

which of these provides evidence for the common ancestry of all life?

• structure of nucleus

• structure of cilia

• structure of chloroplast

• universality of genetic code

Tags

NGSS.HS-LS4-1

A person notices that her houseplants that are regularly exposed to music seem to grow more quickly than those in rooms with no music. As a result, she determines that plants grow better when exposed to music. This example most closely resembles which type of reasoning?

• inductive

• deductive

• neither

• both

Viruses are considered nonliving because they

• are not made of cells

• cannot reproduce

• don't contain DNA/RNA

Which of the following sequences represents the hierarchy of biological organization from most to least complex level?

• organelle, tissue, biosphere, ecosystem, population

• organ, organism, tissue, organelle, molecule

• organism, community, biosphere, molecule

• biosphere, ecosystem, community, population, organism

Tags

NGSS.HS-LS1-2

a suggested/testable explanation for an event...

• variable

• hypothesis

• theory

• control

Tags

NGSS.HS-PS1-2

which of the following types of cells utilize dna but do not have dna encased within nuclear envelope

• bacteria

• fungi

• plant

• animal