Answer:
A.
Substance X has the highest temperature because its particles have more kinetic energy.
D) Robert Hooke first discovered cells when observing cork under the microscope.
Answer:
Polygenic traits are traits that are controlled by multiple genes instead of just one. The genes that control them may be located near each other or even on separate chromosomes. Some examples of polygenic traits are height, skin color, eye color, and hair color.
The sunlight provides energy for the plants to grow. <span>Since it is a closed system, no water would be lost, so it is not necessary to add extra water. </span>
