The First Cells Must Have Been Simple, Single-Celled Organisms Similar

question 2

Short Answer

The first cells must have been simple, single-celled organisms similar to modern _______________.

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Definitions:

Photosynthesis

A process by which green plants and certain other organisms transform light energy, usually from the sun, into chemical energy stored in glucose.

Cutin

A waxy, water-repellent substance present in the cuticle of plants, which helps reduce water loss.

Meristematic Cells

Undifferentiated cells located in the growth regions of plants, capable of dividing and differentiating into various types of plant cells.

Vascular Cambium

A layer of plant tissue located between the xylem and phloem that contributes to secondary growth by producing new layers of vascular tissue.