Which is abiotic?

tree sap

insect

sunlight

woodtable

Sunlight

Explanation:

Abiotic means non-living component of the environment or chemicals that are not derived from life. Abiotic components have a great impact on Biotic components and they interact. Sunlight is Abiotic because they are just photons of energy that interact with plants during photosynthesis. The rest of the choices are derivatives of plants which are Biotic components in the environment.  

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

i think its the first one