Answer: Red blood cells carry oxygen from our lungs to the rest of our bodies. Then they make the return trip, taking carbon dioxide back to our lungs to be exhaled.
Explanation:
Answer:
The heart
Explanation:
A hummingbird's heart is probably the biggest heart in the whole animal kingdom. A hummingbird's heart is very big compared to its weight
Answer: Ripped apart
Explanation:
Breaking the muscles help us build stronger ones back.
Answer:
1. Biopsy: doctors take out tissue for testing at labs
2. Physical exam: doctors check your lips & mouth to look for anything that shouldn't be there (like sores or white patches)
Explanation:
Hope this helps, and please mark me brainliest if it does!
