Identifying the structures of the human heart. Write the function of each part of the human heart. Superior vena cava

Inferior vena cava

Right atrium

Tricuspid valve

Right ventricle

Pulmonary artery

Pulmonary valve

Pulmonary vein

Left atrium

Mitral valve

Left ventricle

Aortic valve

Aorta

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

Where is the nictitating membrane found? a. between the eyelid and the eyeball b. between the retina and the optic nerve c. between the outer and middle ear d. in the organ of corti in the middle ear