Verdadero o falso: Los órganos se componen solamente de moléculas y átomos
El tejido muscular se compone de células musculares
Los tejidos dan origen a las biomoléculas
La raíz es el órgano de la planta que se encarga de la absorción de los nutrientes
Los protones, neutrones y positrones componen los átomos
El tejido epitelial va a dar origen a la piel

What is the primary goal of human communities?

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?