Epithelial tissue <span>covers the body surface and forms the lining for most internal cavities. </span>
In biology, the biotic factors pertain to the living components of Earth while the abiotic factors are those non-living chemicals and physical factors. The only choice that is not an interaction between biotic and abiotic factors is the third choice, "C. male elk fighting over a female".
Answer:
The living organism contain more hydrogen atoms than other atoms because it is bounded with oxygen to form H2O and Oxygen has 16 times the mass than the hydrogen.
Explanation:
As we know oxygen is the most abundant molecule in human body (65%). Human body has approximately 60% of water which is composed by hydrogen and Oxygen. Other than that most of the important biological molecules like fats, carbohydrates and DNA contain hydrogen as crucial part of the structure. So hydrogen atoms are found more abundantly than other molecules.
The relationship mutualism in biology means that the two organisms which are of different species exist in a relationship in which the individuals benefit from the activity of the other. From the choices, letter B. Bees pollinating flowers.
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