Active transport uses up energy while passive transport does not.
Answer:
<h2>A</h2>
Explanation:
1. There are 3 pathways of complement activation:
i) the classical pathway;
ii) the MB-lectin pathway; and
iii) the alternative pathway.
2. The classical complement pathway; for activation, it requires antigen(Ag) antibody(Ab) complexes.
3. While the other pathways can be activated by various ways.
as here, No target for C1qrs exists on the surface of the pathogen in the earliest stages of the response to it.
<span>They are organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.</span>
Answer: It is made out of Phospholipid
Explanation: The cell membrane is semipermeable ( It is made of a phospholipid bilayer, along with other various lipids, proteins, and carbohydrates.
