Answer:
D
Explanation:
proteins make up every thing
Answer is (C).
Dna polymerase adds new nucleotides to the 3' end of the new growing dna strand
A scientific hypothesis must be testable and yield results. It must state the intended or predicted result of the experiment
Answer:
Explanation:
Dutch spectacle makers Zaccharias Janssen and Hans Lipperhey are noted as the first men to develop the concept of the compound microscope
The reason why nost scientists thought that the first true cells formed on Earth were anaerobic is being shown in the second option :B. because there was no oxygen on early Earth. Paying attention to this fact scientists discovered that first cells were prokaryotes and greatest part of them created oxygen as a toxic by-product of their own metabolism which make them understand how the planet was provided with oxygen and made a conclusion that first cells were anaerobic.
