Fossils, trees, current animals. These all offer insight to the history of life on earth
Answer: The symbiotic nitrogen-fixing bacteria invade the root hairs of host plants, where they multiply and stimulate formation of root nodules, enlargements of plant cells and bacteria in intimate association. Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development. brainliest?
Explanation:
Evolution causes genetic material to adapt into variations that are beneficial for a species to survive
45,000 people kill themselves out of 100,000 each year
