Tiktaalik is a transitional fossil which shows how fish evolved into amphibians and reptiles. So the correct option is B.
What is Tiktaalik?
Tiktaalik is a direct ancestor of tetrapods or four-legged animals. It is an extinct fish-like animal and it lived on earth 380-385 million years ago (Devonian period).
The word Tiktaalik is derived from the <em>Inuktitut</em> language which loosely translates to large freshwater fish. This animal had characteristics of both fish and tetrapod and is therefore called the link between these two kinds of animals.
The characters resembling fish are gills and scales and the characters resembling tetrapods are rib bones, movable neck and lungs. There are characters that are a mix of both tetrapods and fish. These are bones and joints in limbs but fish-like fins instead of feet or hands.
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Answer:
Hello There!!
Explanation:
The answer is b.the new allele would decrease the fitness of the individual that possessed it, and that individual would have few or no offspring.
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Arteries are generally larger, undergo more blood flow, and exhibit more blood pressure.
Veins are smaller than arteries, and can have valves in certain parts of the body.
Answer:
Plants and animals release acid forming chemicals that cause weathering and also contribute to the breaking down of rocks and landforms.
Explanation:
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