Answer:
circulatory and excretory
plz brainliest
Explanation:
Your circulatory system carries oxygen, water, and nutrients to cells throughout your body. Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin. Your nervous system controls all these activities with electrical impulses.
The organ systems which are working together to helps to remove waste products from blood are circulatory system and excretory system.
What are organ systems?Organs systems are groups of organs joined together to perform specific functions in body. There are various organs systems in our body such as respiratory system, circulatory system, digestive system, excretory systems etc.
Among which, circulatory system is circulating the pure blood and oxygen through out our body. It removes wastes from blood and purify blood and oxygenate it.
Excretory system is removing liquid and solid wastes from out body with help of a pair of kidneys. They contains a large number of sieve like structure called nephrons which filter out the urine. Therefore, the organs systems helps to remove waste products are circulatory system and excretory system.
Find more on organ systems:
https://brainly.com/question/13278945
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You observe that the hair on your head stands up when a charged balloon is brought near without touching your head. Based on this observation, you write down the following question and steps to an experiment.
Can two charged objects be attracted to each other without touching?
Step #1: Bring the charged balloon 10 cm from your head.
Step #2: Charge the balloon by rubbing it against a cloth.
Step #3: Record your observation.
Step #4: Bring the charged balloon 5 cm from your head.
Step #5: Record your observation.
What revision could you make to improve the experiment?
Remove the fifth step, you do not need to make multiple observations in an experiment.
Reverse the first two steps so that you charge the balloon before you bring it close to your head.
Reverse the second and third steps so you record your observation before you charge the balloon.
Swap steps two and four, you do not need to charge the balloon until the end of the experiment.
Answer:
You reverse the first and second steps.
Explanation:
The balloon won't do anything until it is charged.
Answer:
Reverse the first two steps so that you charge the balloon before you bring it close to your head.
Explanation:
i just took the test it is correct all credits to the person who answered it before me <3 stay safe