кљунари

кљунари

A mammal that lays eggs rather than giving live birth. Though laying eggs is a primitive reptilian trait, monotremes share many morphological, physiological, and reproductive characteristics with other mammals, making them true mammals. Extant monotremes include the duck-billed platypus and echidna.

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Industria/ámbito: Biología
Categoría: Zoología
Company: Berkeley
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posteljica

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1. The study of disease and abnormalities. 2. The manifestation of a disease, injury, or abnormality, as in bone or eggshell for example.

mezoderm

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In animals with three tissue layers (i.e. all except sponges and cnidarians), the middle layer of tissue, between the ectoderm and the endoderm. In vertebrates, for instance, the ...

bradavica

Biología; Zoología

In eggshell, the cone-like structure at the base of the shell unit where the shell unit attaches to the inner organic membrane.

vilica

Biología; Zoología

Often loosely applied to any movable, toothed structures at or near the mouth of an animal, such as the scolecodonts of annelids. In vertebrates, the jaw is derived from the first ...

crevo

Biología; Zoología

The portion of the digestive tract between the stomach and anus; it is the region where most of the nutrients and absorbed.

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