Which of the following is the correct order of levels of organization for living things (smallest to largest)?

The correct order of levels of organization for living things, from smallest to largest, is as follows:

1. Atom
2. Molecule
3. Cell
4. Tissue
5. Organ
6. Organ system
7. Organism
8. Population
9. Community
10. Ecosystem
11. Biosphere

Which of the following is the correct order of levels of organization for living things (smallest to largest)?

organism-biome-population-ecosystem-community
population-organism-biome-community-ecosystem
organism-population-community-ecosystem-biome
community-population-biome-organism-ecosystem

The correct order of levels of organization for living things, from smallest to largest, is:

organism-population-community-ecosystem-biome

Limiting factors are conditions in an organism’s environment that limit its population size. Which of the following is a "limiting factor"?

availability of food
suitable habitat (living space)
predators
all of the above

All of the above options, availability of food, suitable habitat, and predators, can be considered as limiting factors.