Answer:
Blood is not properly filtered
Explanation: Kidneys filter out the blood for any toxins like alcohol. This is why people get alcohol poisoning if they drink too much booze because their body can't process the amount of alcohol they've consumed.
The answer is carbohydrates
I think the circulatory system is the best body system because we need the heart to stay alive, many people live with only one lung. but we need the respiratory system to let oxygen in, and let carbon dioxide out.
The answer to this question is <span>variable-ratio schedule
</span><span>variable-ratio schedule refers to a schedule of reinforcement in which the response is being reinforced. after an unperdictable amount of response is being made.
The purpose of this type of scheduling is to create a high rate of responses.
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