In Figure 2a and 2d, what can you determine about the ability of the parasite to infect its host?

In a series of infection experiments, a researcher discovers that the ID50 value for the infectious bacterium Parasiticum mucoides is 100, and that the ID50 for another infectious bacterium, Donoteatum thisbacterium, is 15,000.  Given these data, a person exposed to 1,000 bacteria of each type would be more likely to be infected by which bacterium? Group of answer choices There is no way to know given the information provided Both infections are equally likely Parasiticum mucoides Donoteatum thisbacterium

Select only the true statements about soil bacteriophages ahead: -Phages help on increasing soil biodiversity -Phages are nnonself replicating living infectious agents -Phages prevents low-generation-time- species from becoming dominant - Phages can infect protozoa -Phages are important in bacteria lateral gene transfer

Sea otters are being affected by a disease call toxoplasmosis. What causes this disease? What organisms does it affect?

If the final or definitive host of a parasitic flatworm were eradicated, what would be the likely consequence?

Which of the following are true regarding parasites in the phylum Apicomplexa? a) they are intracellular parasites b) when they are inside cells, they exist within a parasitophorous vacuole c) the phylum includes the malaria parasites d) movement of the parasites into cells involves the action of an actomyosin motor e) they only reproduce asexually

“If you will be a parasite, what would you like to be and why?”