The evolution can be defined as the change in the features of the species over generations that makes the organism adaptable to the changes that occur in it's physical environment. The evolution is based upon the process of natural selection. The theory of evolution also suggests the fact that all species are related but gradual changes occur in them with respect to time. The evolution brings changes in the heritable characteristics which are the characteristics that are passed from the parents to the offspring during reproduction.
Speciation is the creation of a new species distinct from the original due to evolution.
I will walk through how this will work for you.
1. Animals of the same species living on either side of a stream can move from one side to another.
2. The stream changes into a river
3. Animals are now separated and must live apart
4. Environments on either side of the river change over time.
5. Animals due to natural selection, undergo change
6. After a thousands of years, two different of species form.
Hope this helps.
Answer:
B) cytoskeleton
Explanation:
the cytoskeleton is a network of connected filaments and tubules.
Answer:
the branch of biology and medicine concerned with the study of embryos and their development.
Explanation:
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