1. food
2. water
3. shelter
4. waste extermination
Answer:
Heme,porphyrin,Fe2+
Explanation:
The prosthetic group of hemoglobin and myoglobin is heme.
The organic ring component of heme is porphyrin
Under normal condition the central atom of heme is Fe2+
A. is your correct answer.
Answer:
I think the major limitation of her experiment is :
C. She cannot explain what causes the difference
To find this out, she need to find out which could be the independent variable (such as the machine, tire, wind, etc)
<em>Hope it helps answer the question! Also good luck on the test:)</em>
The Answer is D because prokaryotic lack membrane bound organelles
