Answer:
Naturally occurring,inorganic substance.
They are neither plants nor animals. They fall in the dustbin kingdom.
Answer:
1. Evolution of chromosome number - fusion, deletion
2. gene trafficking - horizontal gene transfer, exon shuffling, birth of new genes
3. birth of new gene - exon shuffling, fusion and fission.
Explanation:
Evolution of chromosome number occurs due to the fusion and deletion of the chromosomes. Chromosome fusion may result in the speciation and isolation that rise the evolution in chromosome number.
Gene trafficking is the case that is arise due to various reasons such as forming new genes, horizontal gene transfer, and exon shuffling. However the birth of the new gene can be also arise by the fission and fusion and exon shuffling.
thus, the correct answer is - 1. Evolution of chromosome number - fusion, deletion
2. gene trafficking - horizontal gene transfer, exon shuffling, birth of new genes
3. birth of new gene - exon shuffling, fusion and fission.
Answer:
Explanation:
Ecological pyramids show or explain the number of organisms, the mass of each organism at each levels and the energy transfer at each trophic level. These are referred to as pyramid of number, pyramid of biomass and pyramid of energy.
In Oak tree, at the producer level, which is a tree, will be much smaller to that of primary consumer levels which comprises of millions of insects. This is different to normal trend of ecological pyramids, whereby the number of the producers is always the highest. That's the number of organisms decreases from the producers to the tertiary consumers.