Answer:
I would say the answer would be: 2. The heart contracts and expands to move blood.
Explanation:
The heart is forcing itself to contract and expand so it can move blood throughout the body. If I am wrong, let me know, but I believe that this is correct since it's a function of force.
The receptor cell picks up info then sends it to the muscle
Answer:
The temperature and salinity of water influence how much oxygen it can hold. Warm water holds less dissolved oxygen than cold water because the molecules are moving faster than in cold water and thereby allow oxygen to escape from the water.
Explanation:
hindi ko po alam kong tama ang aking sagot.
The answer is D.rainforest. it is a very complex ecosystem with variety of plants and animals.
Answer: I believe its A
Explanation: Lighting is induction So Eliminate any answer that says conduction . When they loom over us in the gloomy sky, positive charges are induced on the objects on the ground, as a result of electrostatic induction. I also Did more research and it had said as the negative charge in the cloud increases, the ground responds by becoming more positively charged. Similarly, the positive charge in the anvil can cause a negative charge to build up on the ground under the anvil (which may extend far from the thunderstorm base). I hope this helps.