Yes, you're correct, it's the first one. He should do research before he does an experiment, because someone else may already know.
Answer:
D.) Amino Acids
Explanation:
Please see picture attached to this answer.
Not sure if you still need the answer but its number Three, they are the decomposers in many ecosystems
The skeletal system<span> performs vital </span>functions<span>— support, movement, protection, blood cell production, calcium storage and endocrine regulation — that enable us to survive.</span>
According to given information,
Distance = 6 + 10 = 16 m
Displacement = 4 m
So, Distance - Displacement = 16 - 4 = 12 m
So, your final answer is 12 m.
Hope this helps!
