Artificial Selection.
Brainliest Pls!
Answer: Hello in Estonian is Tere.
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Answer: Option B
Explanation: The first line of defense acts a barrier and does not allows the foreign materials to enter inside the body. It includes chemical and physical barriers that are always ready to protect the body from infection.
Example: Skin and mucous membrane.
Skin is largest organ and it acts as a barrier between pathogens and human body. It acts a waterproof material and the pathogens cannot get inside through skin unless the skin is broken.
Mucous membranes also acts as first line of defense and breaks the cell wall of many bacteria entering through the openings of the body.
So, skin and mucous membrane are the first line of defense.
The climate change impacts a coral in many different ways. But the main reason that could happen is if the climate were a coral lives is too cold and it begans to die. Corals have feelings toi, when they get a sense that they are going to die they try to leave but if they can't they will just die.