Answer:
the diversification of a group of organisms into forms filling different ecological niches.
Explanation:
Answer:
Fossils provide direct evidence of evolution. They show the changes of animals from ancient organisms to present form. Fossils are the preserved remains of earth layers. There are 4 types of fossils-
Original fossils that are not very old. e.g. teeth, skeleton, shells.
Frozen fossils
less permanent fossils
casts, molds, and prints - wings, skin, leaves, etc.
The fossils show the adaptive radiation in horses, humans. The transition fossils form the connecting link between different groups such as fish and amphibians, reptiles and birds, etc.
e.g. Archeopteryx is the connecting link between the reptiles and birds.
The modern horse Equus have several ancestor species, we came to know from the fossil records.
The fossil record shows the evolution of humans and their ancestors.
Answer: The steps may not always be completed in the same order. Following the four steps, the results of the experiment will either support the hypothesis or will not support the hypothesis. Scientists are always free to change or write a new hypothesis and start the four steps all over again.
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c. dry part of the time and underwater part of the time. In estuaries, normal organisms may not thrive because of the harsh environment conditions. Salinity or salt content changes invariably, temperature also varies, as well as temperature, and tidal currents change direction every 6 hours.
Minimum viable population - is the smallest population size that can avoid extinction by environmental or genetic factors.
