For Adults to Receive Substantial Health Benefits from Exercise, Which

question 20

Multiple Choice

For adults to receive substantial health benefits from exercise, which of the following is true?​

• A)​At least 150 minutes of moderate-intensity or 75 minutes of vigorous aerobic activity is necessary each week. 
• B)​At least 75 minutes of moderate-intensity or 150 minutes of vigorous aerobic activity is necessary each week. 
• C)​Aerobic exercise should be performed in episodes of at least 30 minutes in order to be effective. 
• D)​Only aerobic exercise provides health benefits-strength training is not necessary.

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Definitions:

Spindle

Temporary structure that moves chromosomes during nuclear division; consists of microtubules.

Motor Proteins

Proteins that convert chemical energy into mechanical work, moving along cytoskeletal filaments to transport cargo, contract muscles, or enable cell motility.

Microtubules

Cylindrical structures found in cells, crucial for maintaining cell shape, cell division, and intracellular transport.

Cancer

A disease characterized by the uncontrolled growth and spread of abnormal cells, which can form tumors and potentially lead to death if untreated.