Explanation:
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Answer:
Replication only happens before mitosis and meiosis because in this process the whole DNA is turned into two copies of it, in order for the cell to duplicate. Otherwise, the transcription, which is the first step for protein synthesis, happens all the time in the cell and only works in specific genes that codify for specific proteins. If the DNA was replicated every time a protein is needed, the cell would have millions of DNA copies for no purpose at all, meaning a big waste of energy and space.
Answer:
A. the burned forest because the disturbance has removed competitors and made more resources available
Explanation:
An exponential growth refers to a rapid growth rate within a specific time limit.
Competition for limited resources by different plant species occur within an ecosystem, a form of relationship that limits the growth of all the parties involves.
When a disturbance regime within a forest removes some of the plant species within it, other species grows rapidly as a result of more availability of resources (than usual) due to reduced competition.
Hence, the correct option is A.
Answer:
A
Explanation:
Biofilms are a colony of bacteria that secrete a layer of extracellular matrix (made of polymeric substances of proteins or polysaccharides) that is hard to penetrate with antibiotics. The bacteria in the biofilm also function in coordination and are able to adapt to different factors hence making them hard to eradicate. They can be found in the inside surface of sewage pipes.
Any type of habitat destruction threatens biodiversity. Logging, construction, farming, building riads, these are but a few examples.
