Answer:
It was formed around 4.5 billion years ago when something the size of mars smashed into the Earth, which made matter fly into orbit.
Answer:
D.
Explanation:
we learned about this in living environment! for example: humans used to have tails but the humans without tails offspringed with the ones with tails causing the genetics to take over making different traits appear in offspring. Therefor, the answer is D.
Sends signals between the brain and body - Nervous Tissue
Protects the skin from bacteria and particles - Epethelial Tissue
Allows shivering to produce ear and maintain body temperature - Muscle Tissue
Provides structural support for the organs - Connective Tissue
I'm almost certain that the answer would be X and Y
Hoped this helped!
Answer:
Are you referring to symbiotic relationships between organism? If so, the answer would be parasitism.
One organism, a parasite, takes advantage of another organism at the expense of the host organism.
Ex. A tick bites a dog for blood to use as food. The dog gets an uncomfortable bug bite and the dog might catch a tick borne disease.
