Answer:
I think it is ether A or D
Answer:
The correct answer is- b. P: coughing; C: saliva; B: complement system
Explanation:
Body show physical, chemical and immunological response against foreign antigen to protect the body from them. Coughing, sneezing, skin, respiratory tract, gastrointestinal tract comes under physical barrier. They restrict the bacteria to get into the body.
Chemical barrier includes saliva, tear, sweat, mucus that helps in killing the pathogen at the outer body surface. Antibodies, immune cells, complement system comes under immune response which helps in destroying the pathogen which are present in the body.
Answer: Constrict the blood vessels and inhibit the kidneys from removing water from the blood
Explanation: Antidiuretic hormone(ADH) is an hormone produced in hypothalamus its helps regulate water in the body by it activity in the kidney and control blood pressure.
when ADH is at higher concentration it causes the blood vessels to constrict thereby preventing water from being loss from the kidney leading to high blood pressure.
High blood pressure also occur in adult whose blood vessels are weak and have constrict.
This is called <span>ectothermy.
I hope this helps you!
xo, Leafling</span>