Question

which group of parasitic eukaryotic microorganisms is responsible for causing malaria?
○ apicomplexans
○ amoebas
○ trypanosomes
○ plasmodium

question 4 (1 point)
the life cycle of the malaria-causing plasmodium species involves transmission by:
○ fleas
○ mosquitos
○ tsetse fly
○ sandflies

Explanation:

First Question (Which group... malaria?):

Malaria is caused by Plasmodium, which is a type of apicomplexan. Amoebas cause diseases like amoebic dysentery, trypanosomes cause sleeping sickness, and while Plasmodium is an apicomplexan, the question asks for the group (or the specific genus here). The correct answer is Plasmodium as it's the direct causative agent (and Plasmodium is an apicomplexan, but the options have Plasmodium as a choice).

Plasmodium (malaria parasite) is transmitted by female Anopheles mosquitoes. Fleas transmit plague, tsetse flies transmit trypanosomes (sleeping sickness), sandflies transmit leishmaniasis. So the correct vector for malaria is mosquitoes.

Answer:

D. Plasmodium

Second Question (Life cycle... transmission by:):