The Adaptive Immune System Is Capable of Mounting Specific Responses

question 38

Multiple Choice

The adaptive immune system is capable of mounting specific responses to particular microorganisms because

• A)stem cells determine which type of B and T cells to make.
• B)stem cells make different antigen receptors depending on the invading microorganism.
• C)lymphocytes are able to change their antigen specificity as required to fight infection.
• D)the body contains an enormous diversity of lymphocytes,each with the ability to respond to a different antigen.

Explain the significance of profit margin and how it is calculated.

Distinguish between cash and accrual accounting principles.

Understand the concept of contra accounts and their use in financial reporting.

Analyze and prepare basic adjusting entries related to prepaid expenses, accrued expenses, and depreciation.

---

Definitions:

Cells

The basic structural, functional, and biological units of all living organisms, acting as the building blocks of life.

Molecules

Molecules are two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

Cytology

The branch of biology that studies cells, their structure, function, and significance in health and disease.

Molecular Biology

Molecular biology is the branch of biology that focuses on the molecular basis of biological activity, including the interactions between DNA, RNA, proteins, and their synthesis.