All of the Following Are True of a Zygote, Except

question 262

Multiple Choice

All of the following are true of a zygote, except:

• A)it is a hollow ball with an inner mass of cells and an outer layer.
• B)it is the union of an ovum and a spermatozoon.
• C)it contains 46 chromosomes.
• D)pregnancy begins after the zygote begins to divide.

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Definitions:

Secondary Xylem

The part of a plant that contributes to wood formation, resulting from the division of cambium cells and providing structural support and water transport.

Cork Cells

Specialized cells in the bark of a plant that are dead at maturity and serve to protect and waterproof the plant.

Collenchyma

Living cells with moderately but unevenly thickened primary cell walls; collenchyma cells help support the herbaceous plant body.

Xylem

Xylem is the type of plant tissue responsible for the transport of water and nutrients from the roots to the leaves and stems, playing a critical role in plant vascular systems.