An Oak Tree Was Planted 22 Years Ago

question 27

Multiple Choice

An oak tree was planted 22 years ago.How many seconds does this correspond to? (Do not take leap days into account. )

• A)6.9 × 10⁸
• B)1.2 × 10⁷
• C)2.9 × 10⁷
• D)2.8 × 10⁸

---

Definitions:

Cerebellum

A brain structure beneath the occipital lobes that helps in refining movements, maintaining posture, and balance.

Interneuron

A type of neuron that connects sensory and motor neurons within the central nervous system, facilitating communication and reflexes.

Cell Body

The part of a neuron that contains the nucleus and the majority of cytoplasmic organelles, responsible for the neuron's metabolic activities.

Soma

The cell body of a neuron, containing the nucleus and other organelles, where most of the cell's metabolic activities take place.