Cellulose, that is the molecule that makes a tree sturdy.
Answer:
A, C and D are photosynthetic. They are green stained suggesting the presence of chloroplast and has multiple mitochondria for energy production
The reason why humming birds need long beaks is to be able to get the nectar from the flowers, kind of like how we need straws to drink out of to go cups. Humming birds also have very long tongues that also help this process. Since humming birds beaks help them get the food they need, it makes them more successful in their environment.
The answer is:
Glands,Skin,Nails,Nerves and Hair.
I hope this helps :D
Answer:
the answer is biochemistry
