Confidence votes 283. Caspian Sea on the northern border, and the Persian Gulf and Gulf of Oman on the southern coast.
A specimen is a sample of something, like a specimen of blood or body tissue that is taken for medical testing. The noun specimen comes from the Latin word specere, meaning âto look.â Biologists collect specimens so they can get a better look at something to study it. The idea is that, with a good specimen, you can learn about an entire group: it's a good representation. That meaning is echoed in the slang use of specimen, a strong, healthy and attractive person.
Compound just refers to the fact that there are two lenses magnifying the specimen at the same time, the ocular lens, and the objective lens. Because it is made up of more than one lens. A simple microscope is make up of one lens (a hand held magnifying glass can also be considered as a simple microscope). In a compound microscope, one cannot see the magnified image until both the lenses are used.