Atiny rocky island in the south pacific is home to a very small food chain. coconut palms grow on the island and drop coconuts. the coconuts are eaten by coconut crabs. the coconut crabs are then eaten by seals. according to an ecological energy pyramid, the seals would receive about of the energy that the crabs receive.

a) 1%
b) 10%
c) 50%
d) 100%

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.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.