Answer:
Van Helmont thought he proved that plants obtain nutrients from water rather than soil.
Answer:
B. An Ecosystem
Explanation:
A C and D do not fit the picture.
Answer: Each of several hierarchical levels in an ecosystem.
Relating to feeding or nutrition.
Explanation: ...
1. <span>a. messenger RNA (mRNA)
2. </span><span>c. they have different sugars
3. </span><span>a. uracil
Hope this helps!</span>
Explanation:
in dim light the iris contract ,the the pupils widens to allow more light to enter the eye,in bright light the iris relaxes and size of pupil becomes smaller to reduce amount of light entering the eye. NOTE: the muscle do not expand they either contract and relaxes
