I believe the blank would be the dirt soil
First it's can not be biosynthesis because it is taking in food molecules means it cannot synthesisi its food
Second nutrition is the process to take nutrients
Third absorption means to absorb but here cell does phagocytosis and pinocytosis
Forth digestion obviously when an organism eats something it have to digest it and it it is its capability.... and so far as I think Digestion should Ben your answer!
Answer:
The naïve B cell expresses a membrane-bound form of the antibody as a receptor and secretes that same antibody when it differentiates into a plasma cell.
Explanation:
Naive B cell is a type of B cell that has still not been exposed to the antigen. The B cell receptors (BCRs) are transmembrane proteins composed of 1-a surface immunoglobulin molecule capable of recognizing the antigen, and 2-two transmembrane subunits that transduce the signal. When a B cell binds to antigen with its BCR, the B cell will proliferate and differentiate into a plasma cell. This plasma cell then releases antibodies, which are soluble forms of the BCR where the transmembrane domain that anchors the antibody protein to the membrane of the B cell is eliminated.
The binding of oxygen to hemoglobin differs from the oxygen binding behaviour of myoglobin because oxygen binding to hemoglobin is cooperative.
<h3>Hemoglobin - oxygen binding</h3>
Hemoglobin is the oxygen carrying protein of the blood that is located at the red blood cells. They have high affinity for oxygen.
Myoglobin is found in the muscle cells and they are contain haem proteins which they used to transport and store oxygen in the muscles.
Hemoglobin and myoglobin are two types of globin proteins that serve as oxygen-binding proteins, but binding of oxygen to hemoglobin differs from the oxygen binding behaviour of myoglobin.
This is because binding of oxygen by hemoglobin is cooperative. This means that as hemoglobin binds successive oxygens, the oxygen affinity of the subunits increases. This is opposite for myoglobin.
Learn more about hemoglobin here:
brainly.com/question/10122738
Answer:
Meiosis
Explanation:
All living organisms reproduce i.e. replicate themselves by producing young ones. However, they either do this sexually or asexually. Asexual reproduction involves the contribution of only one of the parent while sexual reproduction involves the two parent's contribution.
In sexual reproduction, a process of gamete formation called MEIOSIS occurs whereby the parental cell produces reproductive daughter cells that have a reduced number of chromosome (by half). The male and female gamete unites in sexual-reproducing organisms to form the offsprings.
Since only one parent is needed in asexual reproduction, there is no need for formation of gametes, hence, meiosis (a division only for reproductive cells) does not occur. The parent simply divides into its progeny.
