Which of the following statements is true?
B. A habitat represents all the biotic factors in an ecosystem.
Answer:
The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the cardiovascular system.
Explanation:
On Mercury, for example, the sun sometimes moves in retrograde. As Mercury speeds through its closest approach to the sun, its orbital speed overtakes its rotational speed. ... Most of the large moons orbit in the same direction that their planet spins.
Ecdysis
Ecdysis is the name of the process in which an arthropod sheds its exoskeleton and forms a new one.
Ecdysis is the process in which an arthropod or an insect shed its outer cuticle (exoskeleton), and forms a new one. Ecdysis is an essential process in the growth and development of organisms. In arthropds, this process takes place after various steps that are caused by a hormone (ecdysone) that is secreted from glands behind the brain. Organisms utilize high amount of energy while forming a new cuticle, and the old cuticle that is shed in this process is known as exuviae.