The Big Bang theory believes that everything in the universe was once concentrated into one point. This point exploded, and ever since the universe has expanded. True or false

Asap i will reward you brainliest for best which sentence about protists is accurate? all protists are unicellular and microscopic in nature. they have organelles, so protists are eukaryotic in nature. all protists make their own energy through photosynthesis.

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

Which nucleotide component contains nitrogen