Question

babesiosis is a disease often carried by ticks in the tropics. which sentence best explains how climate change could increase the number of babesiosis cases?

a. infectious diseases may become more widespread as ticks increase their range.
b. rising seas and flooding may result in the displacement of millions of people.
c. ticks may weaken the animals they feed on, causing more deaths in the population.
d. people who work in agriculture may have to relocate to find new employment.

Explanation:

Climate change can lead to changes in temperature and precipitation patterns. These changes can allow ticks (which carry Babesiosis) to expand their geographical range. As ticks move into new areas, they can potentially infect more people with the disease they carry. Option A directly links climate - related range expansion of ticks (due to climate change) to the spread of an infectious disease (Babesiosis). Option B is about human displacement due to rising seas and has no direct relation to Babesiosis. Option C is about the impact of ticks on animal populations, not on the number of Babesiosis cases in humans. Option D is about agricultural workers relocating and is not relevant to the spread of Babesiosis.

Answer:

A. Infectious diseases may become more widespread as ticks increase their range.