Answer:
An organ is more complex than a tissue
Explanation:
A group of tissues form an organ just like a group of similar cells form a tissue
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People who have darker skin have more melanin which is a black or dark brown pigment in the skin. When we are out in the sun our skin produces more melanin, which helps our skin be more resistant in the sun. This is why we tan.
Answer:
A. Natural
Explanation:
The moon orbits Earth just like Earth orbits the sun. The moon is Earth's only natural satellite.
Answer:
The three types of symbiotic relationship are: mutualism, commensalism, and parasitism.
Example: 1.Mutualism: Pistol shrimps and gobies.
2. Commensalism: Sharks and Remora Fish.
3. Parasitism:. Tapeworms, fleas, and barnacles.