1. 25% which is bb
2. All living things are made of cells
3. Grams, mass
Hope that helps.
Answer
Some organisms observed by Charlis Darwin are as follow:
1. Beetles
2. Giant tortoise
3. Mockingbird
4. Rhea
5. Pigeon
6. Sand lady slipper
The question doesn't have choices. It would be better to have one.