Giving brainiest! What is a hypothesis? A. A questionnaire B. A scientific experiment C. A set of assumptions used to explain some phenomenon for its own sake D. An educated guess that is based on some phenomenon

What is hypersensitivity? Allergies? Autoimmune disorders?

Most urtravoliot radiation is blocked from reaching earths surface by what substance found in the atmosphere

Nearly 97% of the water on Earth is unusable by humans because of its 1.) ___. This lack of usability is due to the fact that water 2.) ___. 1. A. temperature. B. salinity. C. impurities. 2. A. is a universal solvent. B. expands upon freezing. C.

Which one of the following is the highest level of environmental organization? a.) ecosystem b.) community c.) population d.) organism

What is the function of the central nervous system?

This is the process that releases energy by breaking down food molecules in the presence of oxygen.

What happens during photosynthesis? a. heterotrophs consume atp. b. autotrophs consume carbohydrates. c. autotrophs produce carbohydrates. d. heterotrophs produce atp?

How do decomposers obtain energy?

How is parenting a lifelong job? Explain.

Frontal precipitation is most characteristic of the middle latitudes. frontal precipitation is most characteristic of the middle latitudes. a. True b. False