Astudent proposes this hypothesis in class: "if i make the angle of a ramp steeper, then a ball rolling down the ramp will be going faster when it hits the ground.”

which part of a hypothesis should the student add to this that could also be tested in other experiments?

an explanation based on prior scientific knowledge or observations
an explanation of how the hypothesis will inspire new questions
an independent variable that the student controls during the experiment
an independent variable that is affected by the other experimental variable

A. an explanation based on prior scientific knowledge or observations

i just took the quiz and got the answer correct.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

thats not a question