Soha, Kesha, and Lance work together in the same office and also live in the same apartment building. They travel to their workplace using different modes of transport Arrange their transport choices according to their carbon footprint. Begin with the person with the smallest

footprint

Soha drives a gasoline-powered sedan

Kesha drives a hybrid electric car.

so

Lance rides a bicycle.

Lance rides a bicycle.

↓

Kesha drives a hybrid electric car.

↓

Soha drives a gasoline-powered sedan .

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.

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