In a population of bison, the birth rate over one year is fourteen. No bison immigrate into the population that year. Twenty bison die during the harsh winter, and ten more leave the population in search of more food. What has occurred in this population over one year?
⇒ 6
Answer
Between 1990 and 2010, more than 8.6 million acres of forest were destroyed in Indonesia, Malaysia, and Papua New Guinea to build palm oil plantations. These forests are homes to orangutans, elephants, tigers, and other animals. How will this activity affect the forest ecosystem?
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