crevo

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

生物学; 动物学

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

mezoderm

生物学; 动物学

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

生物学; 动物学

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

vilica

生物学; 动物学

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 ...

egzoskelet

生物学; 动物学

An external, often hard, covering or integument that provides support and protection to the body.

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писмо

Писмо је написана порука на папиру. Данас је необично да се користи овај начин за комуникацију (осим за званична или важна питања) због напретка у ...