The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
B. Spermatogenesis.
Make gametes are called sperm, and
Spermato-sperm
genesis-creation
Answer:
there is a 50% probability
Explanation:
When two pink snapdragons are bred there is a 25% for the offspring to be red, 25% white, and 50% pink
Answer:
a complex series of feeding relationships with many organisms interacting and depending on each other
Explanation:
Answer:
Closed system.
Explanation:
Robot is an closed system because there is no transfer of mass but transfer of energy occurs from robot to its surrounding. According to the definition of closed system, closed system is a type of system in which there is only transfer of energy occurs while in open system both mass and energy can be transferred from the system to their surrounding. So no mass transferred from the robot only energy in the form of mechanical energy is transferred.
