Answer:
Blood circulates through a network of vessels throughout the body to provide individual cells with oxygen and nutrients and helps dispose of metabolic wastes
Explanation:
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Toxoplasmosis is a bacteria in cat litter and can cause the flu.
The heart muscles resembles involuntary muscles .
I don’t quite understand the answers that you’ve provided to choose from, but if we are comparing those millions of years to a 24 hour clock, then humans have only been around for 2.88 minutes of out the entirety of life on Earth.
Sorry if this didn’t answer your question, but I hope this somehow helps.
