Answer:
4.5 billion years ago
Earth hasn't always been a blue and green oasis of life in an otherwise inhospitable solar system. During our planet's first 50 million years, around 4.5 billion years ago, its surface was a hellscape of magma oceans, bubbling and belching with heat from Earth's interior.
Explanation:
The options aren’t there but here’s a few facts.
Genotypes are the alleles present in order to form a phenotype. A phenotype is the traits present based on the genotype or genetic code. For example, if you have two dominant alleles (which is a genotype)... let’s say C (as in the dominant allele stands for curly hair) Then if the genotype was CC or Cc the phenotype would be curly hair. If the genotype was cc than the phenotype would be straight hair.
The correct answer is (C) competition which determines the succession of an animal in the ecosystem.
<h3>
What factors influence when an animal species enters a successional ecosystem?</h3>
Interaction and competition among species in a certain environment is a biotic element of ecological primary succession. When succession begins and the first species, known as pioneer species, alter the environmental structure, new species that are more tolerant of the new conditions move in.
These communities gradually replace one another until a "climax community"—such as a mature forest—is attained or a disturbance, such as a fire, occurs.
Learn more about animal ecosystem refer:
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So that it can sustain different life that requires different environments. Angler fish, for example, require a dark and cold environment to thrive while tuna require a light and warm environment.
