Which describes symbiosis? Two organisms belonging to different species live closely together and have specific interactions. Two organisms belonging to different species live in the same area. One organism hunts and eats the other. Two organisms belonging to same species live in the same area. They fight to have access to limited resources. Two organisms belonging to different species live in the same area. One organism leeches resources from the other one.

Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove

One of the purposes of transcription is to produce a sequence of bases that

Wich organism obtains its energy from dead or decaying matter