Answer:
Dissimilar organisms might have evolved from a distant, common ancestor.
Explanation:
First of all we should know species. Species is considered as a basic unit of taxonomic classification of an organism.
Initially, the scientists are agreed on this phenomenon that all distinct species are evolved gradually from common ancestor. Today, the species which are different from each other just like hummingbirds, humans and whales are from the same ancestor but with the time passage genetic mutation occurs and at the end dissimilar organisms we can see in our environment/surroundings.
Answer:
Troposphere.
Explanation:
Humans live most of their lives in the troposphere atmosphere.
When a small populations' gene frequencies are changed drastically by chance alone it is called a genetic drift
<span>Germination of a diploid zygospore followed by meiosis produces 4 haploid cells</span>
