Cell Differentiation and Tissue. Within multicellular organisms<span>, </span>tissues<span> are organized communities of cells that work together to carry out a specific function. The exact role of a tissue in an </span>organism<span> depends on what types of cells it contains !
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Answer:
Taking antibiotics only on doctor prescription and completing the full course of antibiotics.
Explanation:
Antibiotic resistance occurs when bacteria do not get harmed or killed by a drug which is made against them. Misuse and overuse of antibiotics are the main culprits which induce antibiotic resistance in bacteria.
To prevent the spreading of antibiotic-resistant bacteria antibiotics should only be taken on doctor's prescription. Full course of antibiotics should be done to eliminate all the bacteria which ensures that no bacteria is left to gain antibiotic resistance against the drug.
Antibiotics do not affect or kill virus therefore they should not be taken in viral infection.
You have been assigned the job of convincing the local school board of the best means of making up snow days in your school district. Write a draft of your presentation. (IF YOU HELP I WILL GIVE YOU BRAINIEST!)
Answer:
Positive natural selection.
Explanation:
The positive natural selection is a type of natural selection that increases the frequency of an allele or trait when it is advantageous for the population. What happened in the example is that the mouth with the slight change in morphology (trait) was more advantageous for the population in the south in relation to the ancestral morphology (still preserved in the population in the north), and therefore its frequency increased. This, in turn, is due to the fact that the food (prey) is not the same in the two habitats (north and south). The specific prey in the south, caused the new morphology to be selected, (increasing the frequency of individuals with the new mouth), becasue probably that trait allows the trouts in the south to hunt more effectively.
