MCQOPTIONS
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| 1. |
Populations are said to be sympatric when _______. |
| A. | two populations are physically isolated by natural barriers. |
| B. | two populations live together and freely interbreed to produce sterile offspring. |
| C. | two populations share the same environment but cannot interbreed. |
| D. | two populations are isolated but occassionally come together to interbreed. |
| Answer» D. two populations are isolated but occassionally come together to interbreed. | |