The point in a planet's orbit where it is farthest from the sun is called the omnihelion perihelion aphelion solstice

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.