The 4 chambered heart is cheaper to maintain and manufacture.
Answer:
Conservation of energy, principle of physics according to which the energy of interacting bodies or particles in a closed system remains constant. The first kind of energy to be recognized was kinetic energy, or energy of motion. In certain particle collisions, called elastic, the sum of the kinetic energy of the particles before collision is equal to the sum of the kinetic energy.
Explanation:
The answer is b. Prop roots.
Mangroves are small trees and shrubs that live in the coastal zone. Mangrove trees must fight rough tides, huge waves, strong winds, and storms. One of adaptation is prop roots. The prop roots grow out the mangrove trunk, branches or other prop roots until they touch the ground. There they develop an underground root system. These roots serve as a support in the conditions characteristic for mangrove.
The nucleus<span> is an organelle found in eukaryotic </span>cells.Inside<span> its fully enclosed nuclear membrane, it contains the majority of the </span>cell's<span> genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.</span>
