The intrauterine device is a cuplike rubber device that blocks the cervix in females
Indicate whether the statement is true or false.
ANS: F, diaphragm
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Explain how the presence of Pangea relates to the fact that most marsupials are found in Australia
What will be an ideal response?
Certain pathogens that infect the ____are discharged out of the body in the urine that these organs create
Fill in the blank(s) with the appropriate word(s).
You are the managing naturalist for a natural history museum that has just received a batch of fossils from one of the field paleontologists sponsored by the museum. The note in the box states the fossils all came from the same rock layer. The museum is organized according to geologic timescale, and its management needs you to tell them to which department (based on era) and period specialist (an individual with experience with life-forms of a particular geologic-timescale period) the fossils should go. You find fossils of fish and seed-bearing plants but no reptiles or higher animals and no flowering plants. To which era do these fossils belong?
A) Precambrian B) Paleozoic C) Mesozoic D) Cenozoic
Which of the following are proteins in the blood that can be activated to lyse bacterial cells, mark other bacterial cells for destruction, and enhance inflammation?
A) albumins B) antibodies C) complement D) interferons E) lymphokines