3.5 cause of the kilometers you have to reduce hope that helps.
The two-layered sac surrounding the heart is the pericardium.
Hope this helps!
Answer:
On the inside of your body would be the Liver, overall would be the skin.
Explanation:
Look at scale images or medical diagrams and you will see.
please mark brainliest
Answer:
substrates
Explanation:
they tend to be the original reactant, and the newly formed material is the product
A population would be an organism (the same species) living in an area
