<span>The abundance and variety of fossils in Phanerozoic rocks have allowed geologists to decipher in considerable detail the past 600 million years or so of the Earth’s history. In Precambrian rocks, however, fossils are rare; thus, the geologic record of this important part of the Earth’s history has been especially difficult to decipher. Nonetheless, stratigraphy and radiometric dating of Precambrian rocks have clearly demonstrated that the history of the Earth extends billions of years into the past.</span>
Answer:
A c-shaped spine.
Explanation:
The correct answer is - A c-shaped spine.
Reason -
A c-shaped spine is a trait of Quadri-pedal spine not of bipedal spine.
Answer:
LysThrHis, LysHisThr, HisLysThr, HisThrLys, ThrLysHis, ThrHisLys
Explanation:
You easily combine the options for the tripeptide if you made a chart
Also you can calculate the posibilities with the factorial function in the calculatio (x!): 3*2*1 (you can multiplicate the number of amoniacids by the followed numbers until 1) = 6
