Lamarck<span> is best known for his </span>Theory<span> of Inheritance of Acquired Characteristics, first presented in 1801 . If an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring.</span>
Answer: The correct answer is-
Allopatric- option 2.
Sympatric - option 1.
Allopatric and sympatric are primarily the two major mechanisms for speciation ( formation of new species from an ancestral species).
In allopatric speciation, a population splits into two different species when it is isolated by physical or geographical barrier.
On the other hand, sympatric speciation occurs wihtin the same area. A population splits into two species that is becomes reproductively isolated when a change in the chromosome number occurs.
Thus, option first corresponds to sympatric whereas option second shows allopatric speciaton.
Answer:
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<span>Pokaryotes are single cell organisms. Anaerobic prokaryotes use oxygen to obtain energy.</span><span> They use oxygen to perform cellular respiration, so they perform anaerobic respiration.
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<span>Archaea
and eubacteria are prokaryotic in nature. One of the differentiating
characteristics between them is that eubacteria have peptidolycan in their cell
walls.</span>