What is the function of mating?

Letters ending with Z? Can Hare swim? Is wood alive? How can I tell the difference between a male and female kitten? How is the circulatory system of segmented worms unique among worms? How do Ant give birth? How do pond fish survive winter? What is a 2 year old bull worth 2500lbs? When a group moves from place to place to hunt and gather what are they called? What are the advantages of living in the tundra biome? Explain what happens to environmental poisons as you move up the food chain? Why does my cat pee on towels? Which religion believes in living in harmony with nature? At what age are female cats sexually mature? Which is the most specific term to classify humans? What is the compatibility between goldfish and shrimp in a freshwater aquarium? What animal appears on the exterior facade oa laon cathedral? What is the best way to feed betta fish flakes or pellets for optimal health and nutrition? Do poachers kill animals every day? Why does my fish tank turn green so quickly?