Examen bio

Apuntes

Examen biologia 2023 Characteristics and classification of living organisms → unit 1 - for something to be alive: → Movement:action made causings a change of position → Respiration: chemical reaction in cells that break down nutrients molecules and release energy → Sensitivity: the ability to detect and respond to changes in the internal or external environment (animals have sense organs, plant respond to light and gravity) → Growth: parameter increase in size and dry mass → Reproduction: process that make more of the same kind (bacterias divide) → Excretion: removal from organism of toxic materials and substances in excess of requirement (plants release gasses from leaf surface) → Nutrition: the taking of materials needed for energy, growth and development Kingdom → phylum → class → order → family → genus → species Classification of organisms (taxonomy) - mainly based on DNA, more common DNA the more closely related they are - The first level is the least spesific - Species: group of organisms that can reproduce to produce fertile offspring (descendencia fertil) → pony with the horses same group, when reproducing make donkey that is a different specie, when donkey and horse reprod...