Pollen Grains Preserve Well in Soils Because of Which of the Following

question 15

Multiple Choice

Pollen grains preserve well in soils because of which of the following?

• A)tough chemical properties of the exine
• B)lignified outer wall
• C)numerous phytoliths found within the pollen grains
• D)small size of the pollen grains
• E)suberin and cutin in the epidermis

---

Definitions:

Temperature Fluctuations

Variations in temperature over a period of time, which can be natural or induced by human activity.

Shivering

An involuntary response to cold, consisting of muscle tremors that generate heat and increase body temperature.

Drive Theory

A theory suggesting that motivation arises from biological or physiological needs that push individuals to satisfy them and restore balance.

Homeostasis

The ability of organisms or cells to regulate their internal environment and maintain a stable, constant condition in response to external changes.