Atentative explanation to a question about the natural world is a lawhypothesistheory fact

Hypothesis

Fact: Something that is always the case (ex: The plant has grown)

Hypothesis: Something that is based upon some evidence (If the plants grows in sunlight, then that's the only thing it needs to survive

Law: Something that explains why something happened (The plant grew while in sunlight, so it needs the sun to survive)

Theory: A hypothesis that has been proven through evidence (When I only fed the plant fertilizer, it didn't grow, but when I fed it fertilizer and gave it sunlight, the plant blossomed more and more)

An autotrophic protist - they can perform photosynthesis and mainly consist of unicellular algae. they can be divided into number of systematic group according to the shape of their cell and the type of photosynthetic pigments they use.