Well-developed _____ systems permitted an increase in body size.: ответ на тест 236606 - Английский язык

Well-developed _____ systems permitted an increase in body size.

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Personal computers (or microcomputers) were made possible by two technical innovations in the field of microelectronics: the integrated circuit, or IС, which was developed in 1959 and the microprocessor that first appeared in 1971. The IС permitted the miniaturization of computer-memory circuits, and the microprocessor reduced the size of a computer’s CPU to the size of a single silicon chip.
Because a CPU calculates, performs logical operations, contains operating instructions, and manages data flows, a complete microcomputer as a separate system was designed and developed in 1974.
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A complete microcomputer as a separate system was designed and developed …

_____ is a human disease acquired from or transmitted to any other vertebrate animal.

Biological _____ is a hierarchical system of categories on the basis of presumed natural relationships among organisms.

A (An) _____ is a member of the class of animals that suckle their young.

_____ is commonly called the science of biological classification.