Question

sc.912.l.14.34 - all of these are transported by blood except
electrical impulses
heat and hormones
o2
metabolic wastes
question 3
1 pts
sc.912.l.14.34 - with regard to blood groups, which of the following statements is true?
group b has b antigens and anti - a antibodies
group b has a antigens and anti - b antibodies
group a red cells contain b antigens
group a has anti - a antibodies and b antigens

Explanation:

First Question (All of these are transported by blood except)

Blood transports substances like heat (for thermoregulation), hormones (endocrine signaling), \( \text{O}_2 \) (respiratory gas), and metabolic wastes (e.g., \( \text{CO}_2 \), urea). Electrical impulses are transmitted by neurons via action potentials, not blood.

• Blood Group B: Has B antigens on red blood cells and anti - A antibodies in plasma (to avoid agglutination with A antigens).
• For the other options:
• Blood Group B does not have A antigens (eliminates the option with A antigens and anti - B antibodies).
• Blood Group A red cells have A antigens, not B antigens (eliminates that option).
• Blood Group A has anti - B antibodies and A antigens, not anti - A antibodies (eliminates that option).

Answer:

Electrical impulses

Second Question (With regard to blood groups, which statement is true?)