A Pollen Grain Is Best Described as a ____

question 20

Multiple Choice

A pollen grain is best described as a ____.

• A) female spore
• B) female gametophyte
• C) male gametophyte
• D) male sporophyte
• E) female sporophyte

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Definitions:

Tractor Chassis

The main structural frame of a tractor, to which all other components and systems are attached or supported.

Kingpin

(1) The linkage pin used in a steering knuckle that permits the assembly to pivot, or the tempered steel, coupling pin mounted on a trailer upper coupler that engages with fifth wheel jaws; (2) The lugged pin built into a trailer upper coupler assembly that engages to jaws in a fifth wheel assembly, permitting articulation at the fifth wheel. Forged from middle alloy steels and tempered. In North America, a kingpin is usually welded into the upper coupler; elsewhere, it is more often bolted.

Sliding

The motion where there is continuous contact between a moving object and a surface, often leading to wear or the generation of heat.

Altering Weight

Adjusting the mass distribution in a vehicle or system to change its performance or stability characteristics.