Once We Gain a Certain Level of Body Fat,it Is

question 216

Multiple Choice

Once we gain a certain level of body fat,it is difficult to lose the fat.A key reason that our body resists weight loss is that:

• A)we prefer low-energy foods.
• B)leptin levels rise during a fast,which makes us hungrier.
• C)ghrelin levels drop during a fast,which stimulates fat deposition.
• D)dieting tends to decrease our metabolism.

Explain the process of meiosis and its role in reducing chromosome number.

Understand oncogenes, tumor suppressor genes, and their roles in cancer development.

Distinguish between necrosis and apoptosis, including their biological significance.

Identify the stages of the cell cycle and the mechanisms that regulate cell growth.