Answer:
The battery is the set of vertical lines at the bottom, so there's one battery.
The switches are the line between the small circles (they're closed here) there are 2 of them.
The circles with Xs inside are bulbs.
So B is correct.
Answer:
B
Explanation:
Grass obtains energy through photosynthesis. Grass produces glucose and oxygen, which in short, animals and us take in.
Answer:
With the process of pollination, so we can have fruit.
Explanation:
Answer:B
Explanation:
because if we strand dna we wouldnt have genes
