The prtists that causes malaria evolved from a photosynthetic ancestor and has the remnant of a chloroplast. The organelle no longer functions in photosynthesis, but it remains essential to the protist. Why might targeting this organelle yield an antimalarial drug that produces minimal side effects in humans?

What is the relationship between the sickle cell mutation and the Plasmodium parasite? Would having the HbSA genotype still be advantageous in a region where such parasites are not common? Why or why not?

Worldwide, frog populations are in decline. Several different fungi have been implicated in (thought to be the cause of) decreases in frog numbers. In particular, shrub frogs are especially at risk. You test several different fungi species to see how they affect sample populations of splotched frogs, a close relative of the shrub frog that is not endangered. To do this, you use the different species of fungi to infect populations of splotched frogs and then measure survival rates of these frogs at different frog densities. Frog densities are given in column 1 of the table below. The frog population in column 2 is the control, which was not infected with a fungus. Initial density of frog population (before introduction of Frog survival Frog survival Frog survival Frog survival Frog survival rate rate rate rate rate Control Fungus Fungus Fungus B. grenchius Fungus B. sporifera B. noeltid B. talbuta fungus) Per 1000 m2 10 0.95 0.72 0.83 0.90 0.5 50 0.9 0.64 0.82 0.87 0.35 75 0.88 0.66…

How does killing Anopheles mosquitoes affect the Plasmodium protists?