Other Biology Answers

process of acit inflammation and morphologic pattern of acut inflammation

Phosphate Buffered Saline (PBS) is a commonly used buffer for experiments in biology because its pH and ion concentrations are similar to those in mammalian organisms. It works in a similar fashion to the blood plasma buffer mentioned in the textbook, but using dihydrogen phosphate ions and hydrogen phosphate ions for buffering through the following chemical reaction:

H₂PO₄^-(aq) ⇆  H⁺(aq) + HPO₄^2-(aq) 

The equilibrium arrows depict that the phosphate ion (H2PO4^-) is dissociating further into two component ions in solution, but at the same time H⁺ and HPO4^2- ions are combining simultaneously to form phosphate in solution. So, at any given point in time, and under the appropriate conditions, there is an equal quantity of dissolved ions and combined ions in solution. There is therefore always a hydrogen ion donor and an acceptor in solution.

Based on the equation above, which ion plays the role of hydrogen-ion donor (acid) and which ion plays the role of hydrogen-ion acceptor (base) in PBS? 

1. What is Soil profile?

2. State four importance of soil

3. Give four branches of soil.

Imagine you are the first microbial cells, new to the scene of earth as a habitat billions of years ago. Describe your surroundings. What does the air contain? what’s the temperature you’re experiencing? what else?

Describe the type of injuries that may occur to patients in hospitals.

For each injury explain the preventive measures

1.Do people living in cold regions need to drink same amount of water per day as those living in hot regions?

2. Is the recommended water intake the same for people of different body weights?

Parent 1 is red (Cc) and parent 2 is blue (cc). The offspring in the F1 generation are 50% red and 50% blue. Which allele is dominant? Which allele is recessive?

1. Peter B. is admitted to a local hospital emergency room (ER) suffering from an anxiety attack. He tells the ER physician that he is anxious about a job promotion for which he is being considered. Peter’s secretary is worried about him and asks her father, Dr. K., who is on the medical staff at the hospital, to go to the ER and see how Peter is doing. Dr. K., who is often in the ER, knows all the staff and they provide him with Peter’s chart when he asks for it. Dr. K. calls his daughter to tell her that Peter is being treated for anxiety with an anti-depressant drug and will probably be discharged. She relays this encouraging message to Peter’s boss. Peter does not receive the promotion.Will it be an easy matter for Peter to prove that the ER staff caused Peter to lose his promotion? Explain your answer.
2. What precautions can be taken to avoid giving confidential information to medical personnel who have no need to see it?
3. In your opinion, should a diagnosis of anxiety be a concern for an employer? Why or why not?

Name and give an example of an association in which one organisms is harmed and the other benefits in plants and animals

 A major point of understanding natural selection is that not all organisms in a population get to reproduce. Consider the term fitness as used in biology. How does this term relate to natural selection?