The answer to this question is b, effect.
The answer is nucleus acids
Answer:
I think they're neither perpendicular nor parallel
Explanation:
Not parallel since slope of e (3/5) isn't equal to slope of f (-8/3)
Not perpendicular since the product of their slopes isn't equal to - 1.
=> (3/5)(-8/3)= - 8/5 and not - 1
(plz make sure you typed the equations correctly.)
Hope this helps..
They find shells that other crabs have left behind and use them