Which phrases describe organisms that formed index fossils? check all that apply.

are extinct

had hard parts

were generally large

were alive only for a short time

lived in a narrow geographic area

no long explanations right to the point i prefer

if you have to just copy and paste this

i will be critical because it's for a test

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.

black

lasagna

lunch

math

straight probes are used primarily for measuring flow as it is approaching the test area. its geometry allows the probe to be mounted so that it is in the direct line of airflow.

answer: b

coz red blood cells marrow and circulates the body for 120 days.