Answer:
In general, the process of cell differentiation is irreversible. However, under certain conditions, the differentiated cells are also unstable, and their gene expression patterns can also undergo reversible changes and return to their undifferentiated state. This process is called dedifferentiation
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Answer:
<em><u>Lizard</u></em><em><u> </u></em><em><u>is a poikilothermic animal </u></em><em><u>because</u></em><em><u> </u></em><em><u>lizards</u></em><em><u> </u></em><em><u> </u></em><em><u>are</u></em><em><u> </u></em><em><u>those</u></em><em><u> </u></em><em><u>animals that do not require a fixed body temperature, their temperatures can fluctuate with little to no adverse effects to their overall health. </u></em>
Explanation:
<em>Reptiles are cold-blooded, or ectothermic, animals. This means that they cannot produce heat in their own bodies, and have to rely on their surroundings to keep warm. </em><em> By moving in and out of sunlight, reptiles can keep their body temperature at a steady level throughout the day.</em>
<span>Biological scientists are research scientists who examine how living organisms relate to the environment. They can specialize in any number of plant, animal or environmental studies. Biological scientists most often have earned a master's or doctoral degree in their specialization; such degrees offer the opportunity to develop research while finishing their education. Some low-level positions related to biological science are available to those holding baccalaureate degrees.</span>
Answer:
coal, petroleum, and natural gas.
