I will give brainliest if right Prokaryotes are structurally simple organisms that have existed for over two billion years.
Which of the following are prokaryotes?

Choose 1

(Choice A) A Animals

(Choice B) B Bacteria

(Choice C) C Plants

(Choice D) D Fungi

I will give brainliest if right

Which would not reduce the amount of green house gasses in the air

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a. a piece of paper b. a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block