Answer:
variable-interval schedule
Explanation:
A variable-interval schedule is one of the schedules of partial reinforcement in which behavior or a response is rewarded after a variable amount of time, which is unpredictable, has elapsed. The time interval for rewarding behaviors continuously, after they have been initially established, is varied. For example, rewarding a lab rat for pressing a bar at first after one minute elapsed, then varying the time interval to 4 minutes for the same response to be rewarded and so on. The time interval is varied. Variable-interval schedule produces a slow but steady rate of response that is resistant enough to extinction.
Would it be frequency? Never been a health knowledgeable person, so I'm hoping I'm giving you the right term.
Arteries and veins is right
Answer:
They protect you against illness and disease, they are also part of the immune system.
Explanation:
They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health.
When you get sick, your body makes more white blood cells to fight the bacteria, viruses, or other foreign substances causing your illness. This increases your white blood count
Hope this helps
Mark brainliest if it helps
Answer:
Bacterial infections
Explanation:
Peptidoglycan also called as murein is a polymer which makes up the bacterial cell wall. It consists of sugars and amino acids. Sugar component is made of alternating NAM (N acetyl muramic acid) and NAG (N acetyl glucosamine) residues. A peptide of three to five amino acids is attached to NAM. The peptide chains often cross link with each other to form a strong mesh like structure.
If a drug degrades peptidoglycan structure, bacterial cell wall will not form. As a result it will not be able to survive and ultimately the infection will be cleared up. Example of such drugs are vancomycin, ramoplanin, bleomycin etc.