OK SOMEONE ALREADY ANSWERED SO I NEED DA POINTS TYSM AND ALSO ANANDI34 IT’S I HOPE IT HELPS IT’S OK THO BUT AT LEAST YOU KNOW
The answer would be C valleys formed by a glaciers.
The double membrane. It's theorized that chloroplasts used to be their own single-celled organism in the environment (and therefore with its own membrane). Then, the theory states, a larger cell took in the chloroplast by endocytosis, which involves surrounding the chloroplast in the large cell's own membrane. The chloroplast would then have two membranes surrounding it. This is similar to the thinking for mitochondria becoming an organelle as well. Hope this helps! :)
Answer:
if you put the diagrams I can help!
Explanation:
