торбар

торбар

A mammal that gives live birth to young that have gestated for only a short period of time. The young usually crawl into a pouch (the marsupium) or protected area and attach to their mother’s teat to finish developing. Examples of marsupials include kangaroos, opossums, and koalas.

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Vārdšķira: noun
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Nozare/domēns: Biology
Category: Zoology
Company: Berkeley
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posteljica

Biology; Zoology

In mammals, a tissue formed within the uterus through which nutrients are passed from the mother to the embryo (and later the fetus) and its wastes are removed. It is analogous to ...

patologija

Biology; Zoology

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

mezoderm

Biology; Zoology

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

Biology; Zoology

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

vilica

Biology; Zoology

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 ...