Students will analyze information about how the reduction in numbers of an individual species can affect an entire ecosystem

If one population dies out, all the populations that depend on that species for food may also die out. A change in one population affects the entire community because all the populations of a community depend on each other.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.