An absorptive heterotroph is an organism which secretes enzymes externally into its environment to digest organic materials which are then absorbed.
A plant cell is rectangular, while an animal cell is circular.
Perigee is the correct answer. T<span>his high tide is also known as the proxigean </span>spring tide<span>.</span>
Pectinate muscles are parallel ridges in the walls of the atria of the heart. The name is due to their resemblance to the teeth of a comb (pecten). The heart is the organ pumps blood to all parts of the body. It is made up of four chambers, that is, right and left ventricles, left and right atria, and the blood vessels, Pulmonary artery, pulmonary vein, aorta, and venacava. An auricles are pouch like structure that increase the total filling capacity of the atrium and also increase the volume of blood that an atrium is able to contain.