1. They are easy to raise.
2. Have many offspring during per mating.
3. It can fertilize itself.
4. It has varieties in genotype that is easy observable.
5. It has phenotype that is also easy observable.
Answer:
Heterotrophs/ or consumers
Explanation:
Heterotrophs, or consumers, are organisms that must obtain energy by consuming other organisms (autotrophs or other heterotrophs) as food.
Cleavage.
Color.
Fluorescent Minerals.
Hardness.
Luster.
Miscellaneous Properties.
Specific Gravity.
Streak.