It should be the trophic level..
<span>Evaluation of a system provides new information also known as feedback.</span>
A direct observation usually refers to observing a behavior and knowing exactly what is happening. For example, if I see a pigeon peck at some bread, I have observed it pecking. With direct observation, I cannot assume it is eating, that it is hungry, that it has any intention whatsoever. All I know is that it pecks.
Answer:
Water / 
Explanation:
Energy that is released from glucose during respiration but not transferred to ATP bonds can be detected as 
Answer:
knowledge of biology.
to be thorough and pay attention to detail.
maths knowledge.
excellent written communication skills.
analytical thinking skills.
excellent verbal communication skills.
the ability to work well with your hands.
the ability to use your initiative