Answer:
(B)iology
Explanation:
Biology is a branch of science that studies about the living organisms.
Answer;
X, Z, Y, W
Explanation;
-Kinetic energy is the energy an object has due to its motion. As long as an object is moving at the same velocity, it will maintain the same kinetic energy.
-The kinetic energy of an object is calculated from the velocity and the mass of the object. K.E =1/2 mv²
-From the formula the velocity is squared which means it can have a significant impact on kinetic energy, thus the higher the velocity the higher the kinetic energy. The kinetic energy is also impacted by the mass of a body, such that the higher the mass the higher the kinetic energy.
Genotype<span> is the pair of genes an organism has for a particular trait. </span>Phenotype<span> is the observable trait present in the organism.
It is always important you review the questions you have trouble with so you may understand them better. Hope i could help, have a goodnight.</span>
Answer and explanation:
Antibodies are structures made of four polypeptides, <em><u>two light (L) chains and two heavy (H) chains that join together and form a molecule shaped like a "Y"</u></em>. This structure is possible thanks to the <u>disulfide bonds</u> that bind light chains and heavy chains together. While the stem of the Y is constant and doesn't change ("<em>constant region</em>"), the tips of the Y, composed of 110-130 amino acids and called "<em>the variable region</em>", vary greatly among the different antibodies and are responsible for the high specificity of these molecules.
<u>This is why we could say that the primary structure of this protein is given by disulfide bridges that twist the antibody and allow it to bind to a protein from the flu virus.</u>
