Answer:
oxygen and carbon dioxide
I had to look for the options and here is my answer:
Based on the students observation of the root cells, leaf cells and stem cells from a single plant that was observed under a microscope, how these appear in a light microscope is that, each cell would appear differently since each came from different parts of the plant and had functions different from one another.
When they come into contact with each other they are attracted to each other and the orientation matters because the Hydrogen of one molecule will align with the Oxygen in another water molecule.
GGATCCATT...IM PRETTY SURE.BUT HERE IS A WAY TO REMEMBER:
C=cat well in Spanish cat is gato so, C=G
T=tree well in Spanish tree is arbol so, T=A
B second year. The number of tree rings can tell how old a tree is, but the thickness of those rings also says something about the amount of water available in a given year. Wider rings mean the tree received more water that year. Thinner rings mean water was scarce.
