D. chlorophyll is the main source of light in photosynthesis
The bulk of the heart rests on the side of the body. On the left side
<u>Answer</u>: <em>Option 2</em> foreign antigens
<u>Explanation</u>:
<em>Antigens</em> are proteins that are found on the surface of a pathogen and <em>white blood cells </em>(leukocytes) are the cells of the immune system which helps fight infection and protect the body from foreign antigens.
Whenever a foreign antigen enters the body, a type of white blood cell called as the lymphocyte recognizes it and then produces antibodies against it, to generate an immune response.
So, <em>an immune response is primarily due to white blood cells recognizing foreign antigens.</em>
The correct answer is the somatic nervous system. It is
because the SNS or also known as the voluntary nervous system is the one
responsible for controlling the voluntary movements of the body in which is
through the skeletal muscles. This is the likely reason that helped Kelvin feel
the seams on the baseball and control his fingers to throw the curveball
properly.