Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results. -ally :)
Answer: The hypothesis can be completed as-
If the type of food available changes, then the frequency of beak also changes.
Explanation-
Natural selection is a theory of evolution that was given by Charle's Darwin. According to this theory, organisms that are capable of adapting themselves ( that is having beneficial traits, which enhance their survival) in the changing environmental conditions survive and increase their number by means of reproduction.
According to the information given in this question, the type of food available is changing, which will result in the change in the frequency of bird beaks inhabiting that area. This would indicate their adaptation so as to survive under the changed food type, otherwise they will be unable to consume the food resources and will die out.
Answer: Nicotinamide adenine dinucleotide (NAD; also occasionally written diphosphopyridine nucleotide, DPN) (figure 1) is the coenzyme* form of vitamin B3 (niacin; nicotinic acid; niacinamid
Explanation:
Hope it helps you
They are microscopic. not visible to human eye
Answer:
the answer is correct since species undergo evolutionary changes over time
Explanation:
These evolutionary changes are due to the fact that there could be modifications in the environment of living organisms, that is, in the water, which leads to different populations over time.