Warm - blooded animals weren't immune from the size change caused by climate change.Many birds are now smaller. Mammals have been miniaturized too. Soay sheep are thinner. Red deer are weaker.And polar bears are smaller, compared with historical records.This is not the first time this has happened in Earth' s history.
55 million years ago, a warming event similar to the current climate change caused bees, spiders and ants to shrink by 50 to 75 percent over several thousand years.That event happened over a long time than the current climate change. The speed of modem climate change could mean organisms may not respond or adapt quickly enough, especially those with long generation times.So, it is likely that more negative influences of climate change will be shown in future. 1. Which of the following would be the best title for the passage?
A. Why do some species become smaller?
B. How does temperature change in Earth' s history?
C. Climate change has many negative effects.
D. Species become smaller as climate warms. . The underlined word "trumped" in the first paragraph can be replaced by _________.
A. beaten B. increased C. strengthened D. equaled
3. Researchers from the National University of Singapore believe that _________.
A. too many studies on animals' size have been done.
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