Answer:
Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be positive, negative, or neutral. There are three basic types of symbiosis: mutualism, commensalism, and parasitism! Hope this helps! you can simplify this answer!
Explanation:
Her Menstrual Cycle is what puberty is for a girl ... also known as her period
3 elements: calcium, carbon, and oxygen
Answer is A all living things need to go through the photosynthesis cycle and need oxygen to sustain life
I would say man made but not to sure with out answer choices..