Cell biology

Cell biology

The study of cell structure, physiological properties, interactions with the environment and life cycle.

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Cell biology

Devonian

Biology; Cell biology

Period of geologic time from 410 - 360 million years before the present. Life on land diversified, with the amphibians appearing late in this period. Plants underwent major changes, including the ...

deuterostomes

Biology; Cell biology

Animals in which the first opening that appears in the embryo becomes the anus while the mouth appears at the other end of the digestive system. Main groups include chordates and echinoderms.

desert biome

Biology; Cell biology

Characterized by dry conditions and plants and animals that have adapted to those conditions; found in areas where local or global influences block rainfall.

desmosome

Biology; Cell biology

A circular region of membrane cemented to an adjacent membrane by a molecular glue made of polysaccharides; found in tissues that undergo stretching.

dermal system

Biology; Cell biology

Plant organ system that provides the covering for the plant.

dermis

Biology; Cell biology

One of the two layers of skin; a connective tissue layer under the epidermis containing elastic and collagen fibers, capillary networks, and nerve endings.