Where are the coldest parts of the atmosphere located?
a) troposphere
b) stratosphere
c) mesosphere
d) thermosphere
the correct answer is c) mesosphere

Match each plant to its stem type. bulb rhizome tuber runner

Nextend of semester testsubmit testreader toolsinto-samosquitoes in tropical regions can carry and transmit the malaria parasite to humans. the mosquitoes used to be killed in these regions by sprayingthem with the insecticide ddt. the mosquitoes that were earlier sensitive to ddt are now not killed by ddt and grow and multiply even in the presenceof ddt. how can you explain this phenomenon? oa. all of the mosquitoes must have undergone a mutation for ddt resistance and produced similar kind of resistant offspring, whichevolved into a ddt resistant population. b.some of the mosquitoes must have undergone a mutation for ddt resistance and produced similar kind of resistant offspring, whichwould have been selected by nature, oc. all of the mosquitoes must have slowly increased their tolerance level to ddt and ultimately would have become completely resistantto ddtresetnextnext

Agenotype 'aa' leads to albinism in peacocks. this condition is very rarely found in nature, compared to the normal genotype, 'aa', and 'aa', as theycan be easy prey to their predators and are unable to attract mates. which types of selection forces act here? o a. directional selectionob. stabilizing selectionoc. sexual selectionresetnext© 2019 edmentum. all nights