In the cell, energetically unfavorable reactions are often coupled with favorable ones, such that the new overall reaction is favorable.
Answer: Vaccines give you immunity to a disease without you getting sick first. They are made using killed or weakened versions of the disease-causing germ or parts of the germ (called antigens). For some vaccines, genetic engineering is used to make the antigens used in the vaccine.
Explanation: Vaccines greatly reduce the risk of infection by working with the body's natural defenses to safely develop immunity to disease.
In this case, researchers observed a trade-off between the ability to tolerate harsh dry conditions and the ability to colonize deeper water. This type of trade-off can increase the fitness of only one phenotypic trait.
An evolutionary trade-off can be defined as an evolutionary mechanism where a trait can increase its adaptive fitness in the detriment of decreased adaptive fitness in another phenotypic trait.
In trade-offs, the evolutionary adaptive processes cannot optimize a given trait without compromising another.
A well-known example of an evolutionary trade-off is the balance between the number of eggs that a bird can produce in a determined clutch.
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Novice, apprentice, master, mentor. Student examples will vary, but should follow the model.
Example : Driving a car
S1 - take a class, have someone teach you about the parts of a car, traffic laws etc.
S2 - practice driving with parent/teacher - learners permit
S3 - drive on own, accident free, follow all traffic laws - No tickets or accidents
S4 - teach someone else how to drive
