<span>The uncovered fossils of fish and palm trees shows that Earth’s environment has changed. Due to climate change, animals and trees have adapt to it over time. Researchers have found that tropical fish species are likely to leave their homes and populate in cooler waters as the world heats. And the palm trees were found that have grown in Antartica because of the change in temperature.<span>
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Answer:
option B
Explanation:
The correct answer is option B
Cells are the basic structural and functional unit of life and possess genes. These genes evolve to carry out new biological functions in the body.  
Cells undergo division and growth whether it be unicellular organisms or multi cellular organisms.  
All cells possess the property of compartmentalization and metabolism henceforth taking up nutritive material from the environment. 
These nutrients are further transformed into the cell compartments and the waste produced as a result is expelled out thus forming on open system.