A.Long term energy storage
Epithelial tissue will most likely be found lining organs where substances have to easily diffuse across, such as the intestines and the lungs.
<h3>What are tissues?</h3>
Tissues may be defined as the group of similar cells that combine together to form similar functions. Four main types of tissues are epithelial tissue, connective tissue, muscle tissue and nervous tissue.
Epithelial tissue are presents on the surface, body lining and lining of mouth and internal organs.
The cells of epithelial tissue are one layer thick only. This means epithelial tissue that have the function of absorption are usually thick and has a large surface area that increases the rate of absorption.
Thus, Epithelial tissue is the answer.
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Answer:
The correct option is A. they evolved from land mammals.
Explanation:
Evolution can be described as a process through which organisms in a species change over a period of time due to the natural selection of the environment. Those organisms that have many similarities in their functions or structures are considered closer to one another and have the same common ancestors.
The properties mentioned in the question about cetaceans resembles the properties of land mammals. For example, cetaceans lack gills and breathe air. Land mammals also do not have gills and need to respire for living. The cetaceans have fin bones which are similar to the limb bones in the land mammals. Hence, these observations show that cetaceas have evolved from land mammals.
