Chest Radiology > Pathology > Atelectasis > General. Atelectasis is collapse or incomplete expansion of the lung or part of the lung. This is one of the most common findings on a chest x-ray. It is most often caused by an endobronchial lesion, such as mucus plug or tumor.
A Labradoodle, a crossbreed between a poodle and a retriever. A crossbreed or crossbred usually refers to an organism with purebred parents of two different breeds, varieties, or populations.
Well, a purebred is made by one kind of something, let's use birds as an example. If two Red-lored Amazons had baby birds together, that would be a pure bred. However, if a Yellow-naped Amazon and a Red-lored Amazon had babies together, it would be a hybrid, which are not as much money as purebreds. It means 100% of its breed. For example, a purebred golden retriever would be 100% golden retriever. What purebred means is that it's all the same....if you were doing a punnett square you would do SS or TT or ss or tt. Purebred means that cultivation of a species of animal through selective breeding. Based on my research as to what the differences are, purebreds are pure, from the word itself. For example, white combined with white or purple with purple. Hybrids, on the other hand, are produced through cross breeding; i.e. they're a composite of mixed origin.