Recognize pathogens is the b cells’ job
Answer:
The correct answer is b. Immunogens
Explanation:
Immunogens are the antigens that can trigger the immune response in the body once gets inside the body. Any antigen having capacity to excite a immune response against them is called immunogens but not every antigen is immunogen.
An antigen is called immunogen when it has some characteristic features like foreignness, high molecular weight and chemical complexity. An immunogen can initiate both innate and adaptive immune response. Adaptive immune response is memory based and very specific for any particular immunogen.
Some common immunogens are: bacteria, virus, drugs, chemicals, dust, toxins.
Answer: slightly cooler than
Explanation:
The testes are the male gonads. These are found in a loose pouch which is called as the scrotum behind the penis. The testes are responsible for production and storage of sperms which are the male gametes, and fluids which makes up the composition of the semen in males. The testes being the sperm factor functions efficiently when the temperature of the scrotum is slightly cooler than the rest of the body.
