Select ALL the correct answers.
The image shows a food web in a marsh ecosystem.

In this ecosystem, pollution and human activities have caused a rapid decrease in the population of eagles. At the same time, a virus has caused the population of rabbits to decline. Based on this information, what changes are most likely to occur in the ecosystem?

The population of frogs will decrease because of increased predation by snakes.
The population of storks will increase because of decreased competition with eagles.
The population of gnats will decrease because of a decrease in the amount of grass available.
The population of grass will decrease because of increased predation by rabbits.
The population of snakes will increase because of decreased predation by eagles.

Ms. w, a 21-year-old woman, came into a clinic after suffering a deep laceration on her foot while walking barefoot around her yard. the wound was cleaned, sutured, and bandaged, and she was released to return home after receiving tetanus antitoxoid. within 72 hours, the wound area was red and swollen, the suture line was dark in color, and it was accompanied by severe throbbing pain. ms. w had a high fever, her heart felt like it was racing, and she was finding it hard to concentraten even on simple tasks. she returned to the clinic and was immediately taken to the hospital. following lab tests, a diagnosis of acute necrotizing fasciitis was made. discussion questions 1. explain why ms. w. received a tetanus antitoxoid before leaving the hospital. (see chapters 3 and 4, infection and passive immunity.) 2. explain how acute necrotizing fasciitis developed in this case and the pathophysiology involved. (see acute necrotizing fasciitis.) 3. what is the potential outcome for ms. w if antibiotic drugs do not reduce the infection quickly?

The basic kind of life cycle found in the simplest animals is: haplontic or diplontic

On a spring day, a middle-latitude city (about 40? north latitude) has a surface (sea-level) temperature of 10 ? c. if vertical soundings reveal a nearly constant environmental lapse rate of 6.5 ? c per kilometer and a temperature at the tropopause of –55 ? c, what is the height of the tropopause?