<span>A: The proportions of a population that are at different age levels make up the population’s age structure. </span>
<span>These types of organisms are not found in the savanna, chickens are identified by their gender, size, weight, colors, and shape and according to their species is known when they can inhabit the savannah, usually, these chickens are not Savannah</span>
The answer is density-dependent factor
The answer is commensalism because the hermit crab doesn’t cause harm
The fossil record
This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones. Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind. What traces there were may have been destroyed by geological activity. This is why scientists cannot be certain about how life began.
Fossils provide a snap shot of the past and allow us to study how much or how little organisms have changed as life developed on Earth.