fish were they first organisms to have eyes
If the eyes were located toward the front of the head,the organism was probably an active swimmer.If the eyes were in the back of the head, the organism might have been an ocean bottom dweller. in most species,the eyes were located midway on the head-ideal for an organism that both crawled on the seafloor and swam in the water.
Natural Selection :D
the eyes are located in the center of its head so it is probebly adapted to walking on the sea floor as well as swimming
the eyes are located in the center of its head so it is probebly adapted to walking on the sea floor as well as swimming
Trilobite+sand=crab
rock and plankton
Although researching has provided a definition for the word trilobite there does not seem to be any reference as to why one would be referred to as a trilobite. A trilobite is an extinct arthropod from Paleozoic times of which the skeleton is divided into three parts.
Trilobite.
If the eyes were located toward the front of the head,the organism was probably an active swimmer.If the eyes were in the back of the head, the organism might have been an ocean bottom dweller. in most species,the eyes were located midway on the head-ideal for an organism that both crawled on the seafloor and swam in the water.
The trilobite is able to survive droughts because it is eggs can survive millions of years before hatching.
Trilobite