CNIH Entrance Exam Questions with 100% Correct Answers | Verified | Latest Update 2025/2026

CNIH Entrance Exam Questions with 100% Correct Answers | Verified | Latest Update 2025/2026 Atoms - answer-Smallest whole unit of matter. Protons and neutrons located in nucleus, electrons located in energy shells Element - answer-Pure substance composed of all the same type of atom. example: O2 Compound - answer-Made up of 2 or more atoms of different elements bond together in a fixed ratiopure substances b/c of the same particles example: H2O (water) or NH3 (ammonia) Molecule - answer-Formed when atoms join together- could be either an element or compound Symbiosis - answer-Two organisms live in close contact and at least one benefits. Mutualism - answer-2 organisms live in close contact and both benefit study aid: MUTUALism (mutual benefit) Parasitism - answer-1 organism lives in or on another organism and feeds on that organism example: lice study aid: PARASITE- lice Invasive species - answer-Species introduced by humans into new environments with unforeseen consequences.