Answer:
Euglena are classified into the Kingdom Protista, and the Phylum Euglenophyta.
Explanation:
Which level of organization describes the stomach?
B.) organ
Where is starch in food first digested in the digestive system?
The mouth and small intestine both have a part in digesting starch, but the keyword is "first" so of course that would be:
A.) mouth
Hope this helped. I believe I am right, but correct me if I'm wrong. :)
It's a decomposition reaction. It's a chemical reaction because one substance (H2O2) is breaking down and becoming 2 completely new substances (H2O and O2)
If its a heart its circulatory, lungs respiratory, kidneys excretory, brain nervous, stomach digestive, hormones endocrine, skin integumentary, lymph nodes lymphatic, bone skeletal, muscle muscular, thymus immune system.
But if you can show a pic i could try to answer it more specifically.