Answer:
B. The Blood Travels Back to the Heart In a Vein
Answer: Option B) Antigens
Blood typing is based on the presence of proteins known as antigens on the outer surface of the red blood cell plasma membrane.
Explanation:
Blood groups A, B, AB, and O are determined based on the antigen-antibody reactions between donor and recipient bloods.
For instance,
- Blood type A has antigen A on its plasma membrane
- Blood type B has antigen B on its plasma membrane
- Blood type AB has both antigen A and antigen B on its plasma membrane
- while blood type O has neither antigen A nor B on its plasma membrane
So, antigens is the answer
Answer:
energy
Explanation:
Atp is the powerhouse of the cell.
THANK YOU
Answer: differences in reproducti<span>ve systems
</span>Fat in normal women is between 18% and 20% of body weight, and in normal men it represents 10% to 15%.
Women are ready to nourish a
fetus and then a baby from their own reserves, so women have to stock more
energy and the best way is in the form of fat in anticipation of future pregnancies.
All modern classification systems have their roots in the Linnaean classification system. The Linnaean system is based on similarities in obvious physical traits. It consists of a hierarchy of taxa, from the kingdom to the species. Each species is given a unique two-word Latin name.
