4.a
5.d
those are the only ones i'm 100% sure about.
It is true that unlike erythrocytes, leukocytes have a nucleus and do not contain hemoglobin.
Answer:
A couple of options I would have are:
Explanation:
Engage in your school's efforts to encourage healthy practices
Learn more about the decisions local officials are making that impact your environment
Give back healthy options to your community
Seek out volunteer opportunities
