Answer:
Evolution
Explanation:
If there is an environmental stressor, then animals will evolve to overcome it.
Birds may begin producing more or fewer offspring depending on how much food is available. If there is more food available, birds will have more offspring. If there is less food available, birds will produce fewer offspring.
Beak characteristics change depending on food options, mating rituals, or environment. A bird will need a narrow beak for most bugs, but it will need a wider and stronger beak for nuts and seeds. A bird's beak may also be used to help interact with its environment. For example, a woodpecker has a strong narrow beak to help it break into tree bark to eat.
Conduction<span> means the flow of heat between two objects that are in thermal contact.There is no actual mass transfer,only the thermal </span>energy<span> is passed from layer to layer.</span>
Convection<span> means transfer of heat between fluids by actual mass transfer. It occurs only in fluids.</span>
Radiation<span> means the emission of thermal energy in the form of </span>electromagnetic waves<span> by an object.</span>
This is the case of selective pressure of environmental factors like snow, due to which favored the expression of the allele that formed white coat phenotype. This is not a Hardy-Weinberg principle, in which no selective pressure is applied. The relative frequencies of the alleles change in the gene pool, due to selective pressure, and the expressed alleles are often significant for survival in those conditions.
Sorry here for the points !! Good luck
Answer:
there is only option b is right with the respect to the question
