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A flea and dog are an example of parasitism, because the flea irritates the dog's skin and feeds on its blood.
In a parasitic interaction, one organism benefits whereby the other one harmed. It is a positive - negative relationship. This interaction involves the interaction between the host and the parasite. The host is the bigger organism, here, the dog that is being harmed. The parasite is the flea causing the harm and benefiting from the relationship.
Certain bacteria live in the digestive tract of humans, and their relationship is an example of because mutualism the bacteria help humans to break down the food they eat.
In mutualism, the interaction is based on both organism deriving benefit from one another. Here, the bacteria gets its nourishment by breaking down human food. Human beings are able to digest the food better and are also nourished. A win-win situation is established.
Cattle egrets eat insects off the back of an elephant, which is an example of commensalism because the cattle egrets benefit without either harming or helping the elephants.
This relationship is known as commensalism in which one organism derives benefit. The other one derives no benefit and it is also not harmed in the process. The egrets feeds on the insects that are not harming the cattle.
Explanation:
Answer:
D. transcription factors.
Explanation:
Transcription factors include activators and repressor proteins. They are the cytosolic proteins and are involved in the regulation of gene expression in eukaryotes. The transcription factor may increase the expression of a gene by serving as an activator or may inhibit the gene expression. The pluripotent stem cells are the embryonic and adult stem cells that have the ability to give rise to many but not all the cell types of an organism.
Transformation of somatic cells into the pluripotent stem cells requires the expression of the genes involved in the production of different cell types. Therefore, during their experiments, Takahashi and Yamanaka introduced the genes of the transcription factors involved in the expression of the genes that are otherwise expressed in pluripotent stem cells but not in the somatic cells.
Answer:
False amylase does not break down cellulose into glucose and fructose.
Explanation:
