Answer:
They contain symbiotic rhizobia bacteria within nodules in their root systems, producing nitrogen compounds that help the plant to grow and compete with other plants. When the plant dies, the fixed nitrogen is released, making it available to other plants; this helps to fertilize the soil
Answer:
Scientists can use embryology to determine that many organisms have common ancestors.
Explanation:
Answer: Usually a human body cell contains 46 chromosomes. We get 23 chromosomes from dad and 23 chromosomes from mom for a total of 46.
