Answer:
1)Stem cells can be used to study development. 2)Stem cells may help us understand how a complex organism develops from a fertilised egg. ...
3)Stem cells could be used to study disease. ...
C. Carbohydrates :)
Hope it makes sense!
Answer:
the answer is D) a structure composed of a number of tissues that work together to perform a specific task.
Explanation:
all organs work together to keep us healthy. that's why they're called "organ systems." a system works together!
