Experiments are usually compared against a control group where there was no independent variable applied to the dependent variable.
Answer:
99%
source(s)
https://www.imdb.com/title/tt0119177/goofs
60 years is three half life for the substance, so 40*1/2^3=5
Answer:
iris - b
cornea - f
lens - e
retina - c
photoceptors - b
optic nerve - h ( definately know dis one)
rod cells - e
pupil - a
cone cells -g
i tried
Explanation:
Using a molecular clock, scientists are able to estimate the amount of time that two species have been evolving independently.
Hope this helps :)
