The One-Celled Anchoring Structures Present on the Lower Surface of a Thalloid

question 22

Multiple Choice

The one-celled anchoring structures present on the lower surface of a thalloid liverwort are

• A) roots.
• B) rhizines.
• C) rhizoids.
• D) mycorrhizae.
• E) trichomes.

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Definitions:

Hox Genes

A group of related genes that control the body plan of an embryo along the head-tail axis by specifying regions of identity.

Ectodermal Tissue

One of the three primary germ layers in the embryo of a multicellular organism, which gives rise to the skin and nervous system.

Body Wall

The outermost layer of an organism's body, protecting internal organs and systems from external threats or injuries.

Gut Formation

The developmental process during which the digestive system is formed in an embryo, a critical aspect of animal development and physiology.