A whale's blowhole is located at the top of its head. The position of the blowhole allows whales to continue breathing while their head is submerged. This trait increases the whale's chance of spotting prey or a predator in the water. The position of the blowhole is . a homologous structure
a sign of poor fitness
caused by artificial selection
an adaptation

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.