BSC Unit 4

Across the planet, coral reefs are dying due to a phenomenon called coral _________

bleaching

Choose the best description of the impact of climate change on the community level of biology.

Biological communities are linked to one another, so even minor changes within a community can have major effects.

How might you describe the influence of climate change on some species of mosquitoes and ticks?

Their range has expanded to include places that were previously too cold to inhabit, increasing their potential to spread disease.

Climate change has the potential to increase human exposure to certain diseases, such as those carried by mosquitoes. This is because warming temperatures allow for an expanded range for these insects, which serve as vectors for diseases like ________________, Zika virus, chikungunya, and dengue fever.

malaria or west nile

In general, an ecosystem includes __.

organisms and nonliving factors in their environment

The distribution of the world's biomes follows a _________ based on average temperature and precipitation in a region.

pattern

A biological vector is

something that moves an infectious agent from one organism to another.

Scientists link the ability of invasive species to survive new environments to their ability to tolerate change, particularly with respect to

temperature and precipitation ranges.

Which scenarios describe the impact of climate change on global ecosystems?

- Poorly managed agricultural practices like cattle farming convert grasslands into desert wastelands. - Grasslands are converted to deserts as they are cleared, temperatures rise, and precipitation is reduced. - Increased temperatures cause a breakdown of symbiotic relationships with algae, creating a phenomenon called coral bleaching

Select any description of how climate change influences individuals and species.

- The range of some individuals and species has expanded to include places that were once too cold to inhabit. - The natural pace of evolution, namely extinction, is disturbed. - There are more heatwaves and droughts that threaten the lives of individuals and species.

Select the impacts of ocean acidification.

- fish populations become more susceptible to disease - zooplankton are reduced in numbers - shellfish cannot calcify their shells

Select the examples of invasive species disrupting community and ecosystem function.

- lionfish compete with snapper and grouper throughout the Caribbean - kudzu is outcompeting native plant species

Shellfish are less able to calcify their shells when oceans become

acidified