Why are rain forests the most diverse ecosystem? 1. They are near bodies of water.
2. They have a favorable climate.
3. They are surrounded by mountains.
4. They have more pollutants than other ecosystems.

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic