Answer:
Primary succession is the colonization of species of organisms on life-less barren lands after a volcanic eruption, newly formed land, or sand dunes. Lichens and mosses are the known primary succession community of organisms that helps in developing conditions for secondary succession by breaking rocks and providing soil.
After a fair amount of time, there are new species of organisms that grow and colonize in the land and these are, and ultimately the community becomes fairly stable. A climax community is a more stable, mature community that undergoes little or no change which can live for hundreds of years on the land.
The long-term survival of species is dependent on various kind of resources that may be limited, this can be explained by the lichens and mosses that have enough amount of nutrition and resources during primary succession but as new organism comes with complex structure and competes with these lichens and mosses their number decline due to limited amount of resources.
Answer:
The length of an eccentric motion that a muscle can perform is b. Flexibility
Explanation:
Eccentric contraction means almost the same as muscle strengthening. This type of exercises are used in sports recovery or different types of rehabilitation. These kind of flexibilty (or stretching) exercises enhance the extensibility of the muscle. Eccentric contractions use less metabolic energy and the idea is to challenge the muscles.
Earth's<span> magnetic field is mostly caused by electric currents in the liquid outer core, which is composed of conductive, molten iron. Loops of currents in the constantly moving, liquid iron create magnetic fields. From afar, the </span>Earth<span> looks </span>like<span> a big </span>magnet<span> with a north and south pole </span>like<span> any other</span>magnet<span>.</span>
Answer:
Explanation:
How do the motions of the constellations provide evidence that Earth both rotates on its axis and revolves around the sun? The constellations seem to move in a circle around a fixed point each night. .Earth's revolution around the sun causes the constellations to seem to move..