From smallest to largest it would be individual, population, community, ecosystem, biome, and then biosphere.
Answer: Your answer is b we are still learning about the world we live in today. There are new discoveries every day from new plants that can cure diseases. To different kind of animals even different kinds of conditions and diseases.
Explanation:
Answer is drought. When rain doesn't fall for a long period of time it is a drought. This causes animals to have to relocate/ search vigorously for water. Since there is no rain, it becomes difficult. Plants will start to die and crops won't grow
