Organism x has an enzyme optimum temperature of 37°C. Organism y has an enzyme optimum temperature of 41°C. Suppose organism X is infected by organism Y. In response, organism x’s body temperature rises to 40°C. How will this change in temperature affect enzyme activity in both organisms?

It will increase enzyme activity in both organism X and organism Y.
It will decrease enzyme activity in both organism X and organism Y.
It will increase enzyme activity in organism X and decrease enzyme activity in organism Y.
It will increase enzyme activity in organism Y and decrease enzyme activity in organism X.

It is definitely not B. I have already done it once, and b was not it.

Where does the information about where each transcription factor binds originate?

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?

Choose the diagram that best represents a habitat corridor explain your choice.