Human rights

Human rights

Fundamental and universal rights and freedoms to which all human beings are entitled. They consist of civil, political, economic, social and cultural rights that States are obliged to fully respect according to common standards ratified by national and international legislation.

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cataphyll

Plants; Flowers

In cycads, a scale-like modified leaf which protects the developing true leaves.

columella

Plants; Flowers

A small column of tissue which runs up through the center of a spore capsule. It is present in hornworts, mosses, and some rhyniophytes.

compound leaves

Plants; Flowers

Leaves with two or more leaflets attached to a single leaf stem.

cotyledon

Biology; Flowers

The "seed leaves" produced by the embryo of a seed plant that serve to absorb nutrients packaged in the seed, until the seedling is able to produce its first true leaves and ...

elater

Plants; Flowers

A cell or part of a cell which assists in dispersing spores. The elaters change shape as they lose or acquire water, and they will then push against surrounding spores.

embryophyte

Plants; Flowers

Synonym for the Plantae, as here defined. It includes all green photosynthetic organisms which begin the development of the sporophyte generation within the archegonium.