Define biogeography.

Explanation

### Step-by-Step Text Solution:

1. **Definition of Biogeography**: Biogeography is the study of the distribution of species and ecosystems in geographical space and through geological time.

2. **Components of Biogeography**: It encompasses the examination of how landmasses and species have evolved and distributed themselves over time. This includes understanding the geographical barriers that separate different species and ecosystems.

3. **Impact of Geography on Species**: The separation of continents and landmasses has led to variations in environmental conditions such as temperature, climate, and available resources. These variations influence the types of organisms that can thrive in each area.

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