There are called Amino Acids.
Answer:
If they didn't differentiate then the stem cells would stay the same type and if it somehow kept multiplying then they would just be a massive blob with no actual form or way of functioning.
C. Person because the first organism is a producer and tertiary means third so you’d count everything after the phytoplankton
D is the correct answer ur welcome
Answer:
C. hormone molecules
Explanation:
hormones are secreted in glands and are transported to the organs where they affect it and cause changes.