Answer: Sexual reproduction
Explanation:
First, you should understand that mutation (an change in the base-pair sequence of the genetic material, DNA) is the original source of all genetic variation; as such whatsoever will alter the frequency of alleles, even if it is evolution, it relies on mutation.
In contrast, sexual reproduction does not change the frequency of alleles in the gene pool, rather it ensures constancy through the meiotic cell division process
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Answer:
All the green plants or algae are good indicators of life because they perform photosynthesis. This process produces food which is an essential component of life.
The producers can initiate life at any place, because all the organism depend on producers for their energy needs.
In absence of producers life in not possible.
Answer:
Though chemical fertilizers increase crop production; their overuse has hardened the soil, decreased fertility, strengthened pesticides, polluted air and water, and released greenhouse gases, thereby bringing hazards to human health and environment as well.
If some flowers smell like rotting meat, the most likely pollinator of this species of plant are flies.