What are the terms that were stated? then i could help.
Answer:
Lock and key, where correct fit between components is critical.
Explanation:
Reproductive isolation may be defined as the evolutionary and physiological differences that prevent the mating of the different species. This process is critical for the speciation.
Pre reproductive mechanism prevents the meeting as well as mating of the different group of organisms. The genital structure of the insects match and unique within the species. The genital structure of the male and female species fit with each other as the key fits into its lock.
Thus, the correct answer is option (e).
Answer:
Smoke and fumes
Explanation:
Smoke and fumes contain carbon monoxide, carbon dioxide and carbon particles. These are produced from industries which burn coal and petroleum fuels and also from motor vehicles exhaust. Carbon dioxide prevents layers of warm air from escaping into the upper atmosphere causing greenhouse effect that leads to global warming. On a global scale, this may bring about melting of the polar ice caps thus raising the level of oceans hence flooding of lowland areas.
"They contain at least one double or triple bond" is true of saturated fatty acid chains. This extra bond is why they are called "saturated", because they had less ability to take on other bonds.