Answer: As we go further along a food chain, there are fewer and fewer consumers. The further along the chain you go, the less food (and hence energy) remains available. In other words, a large mass of living things at the base is required to support a few at the top
The march<span> was successful in pressuring the administration of John F. Kennedy to initiate a strong federal civil rights bill in Congress. During this event, Martin Luther King delivered his memorable ''I Have a Dream'' speech. The 1963 </span>March on Washington<span> had several precedents.
</span>
Index fossils are the fossils of organisms that existed over a wide area but only for a limited time period.
Explanation:
The index fossils are fossils that are of huge use for the scientists of all fields when it comes to the Earth's history and its reconstruction. These fossils have this name because they are good indicators about a particular time period. The scientists are able to determine a geological period without even examining the layers, but just by simply finding these fossils.
There are several characteristics that make the index fossils special. They are found over very large area. Not just that they are found in lot of places, but they are also abundant. They existed only for a limited time period, thus being good indicator of a particular geological period. They are easy to distinguish from the other fossils.
The fossils can be divided into five main categories:
- trace fossils
- molds and casts
- petrified fossils
- carbon films
- preserved remains
Learn more about trace fossils brainly.com/question/2676231
#learnwithBrainly
