When cool air sinks it forces warm air to rise is a example of convection.
Answer:
pioneer species
Explanation:
Primary succession begins in barren areas, such as on bare rock exposed by a retreating glacier. The first inhabitants are lichens or plants—those that can survive in such an environment. Over hundreds of years these “pioneer species” convert the rock into soil that can support plants.
The words for the descriptions are food chain, trophic level, energy pyramid, high diversity, low diversity, etc. respectively.
<h3>Ecology</h3>
- The feeding relationship that exists among organisms is termed the food chain.
- Each step in the transfer of energy and matter in a community is termed the trophic level.
- A community or group of living organisms that live in and interact with each other in a specific environment is termed an ecosystem.
- A diagram that compares the energy used by producers, primary consumers, and other trophic levels is known as the energy pyramid.
- An ecosystem with a high number of species is said to be of high diversity.
- An ecosystem with a few prominent species and a low number of other species is said to be of low diversity.
- Organisms that feed on and break down organic matter are said to be decomposers.
- Organisms that can make their own food in the ecosystem are termed, producers.
- Animals that feed on flesh are called carnivores.
- A system of interlocking and interdependent food chains is called a food web.
More on ecology can be found here: brainly.com/question/13046612
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