Which Lineages of Seedless Vascular Plants Have Survived to the Present

question 46

Multiple Choice

Which lineages of seedless vascular plants have survived to the present?  

• A) Monilophytes
• B) Lycophytes
• C) Both monilophytes and lycophytes
• D) Mosses
• E) Gametophytes

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Definitions:

Ectoderm

The outermost layer of cells or tissue of an embryo in early development, giving rise to the outer layer of skin, nerves, and brain.

Germ Layer

One of the primary layers of cells (ectoderm, mesoderm, or endoderm) in the early embryo that will differentiate into various tissues and organs.

Pituitary Gland

a small, pea-sized gland located at the base of the brain, responsible for controlling important functions in the body through the release of hormones.

Ectoderm

The external layer of cells or tissues in an embryo during its initial stages of growth, which develops into the skin's outer layer, the brain, and the nervous system.