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General

General nature or nature terms.

Contributors in General

General

synergid

Biology; General

Cells in the embryo sac of angiosperms that flank the egg cell. The pollen tube grows through one (usually the smaller) of the synergids.

secondary growth

Biology; General

Cells in a plant that are produced by a cambium. Increase in girth of a plant due to the action of lateral meristems such as the vascular cambium. The main cell produced in secondary growth is ...

societies

Biology; General

The most highly organized type of social organization; consist of individuals that show varying degrees of cooperation and communication with one another; often have a rigid division of labor.

syphilis

Biology; General

A sexually transmitted disease caused by a bacterial infection that produces an ulcer on the genitals and can have potentially serious effects if untreated.

sodium-potassium pump

Biology; General

The mechanism that uses ATP energy to reset the sodium and potassium ions after transmission of a nerve impulse.

systemic circuit

Biology; General

The loop of the circulatory system that carries blood through the body and back to the heart.

secondary macronutrients

Biology; General

Elements that plants require in relatively small quantities: calcium, magnesium, and sulfur.

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