Questions below are based on the following draft of a student essay. (1) The emerald ash borer (EAB) is an invasive species of beetle that infects ash trees in the United States and Canada. (2) This insect originated in Asia and was first detected in the United States in 2002 in Michigan. (3) EAB is a serious threat to forests and urban trees in North America. (4) In North America, the EAB infests only ash trees. (5) The female insects lay their eggs on ash trees in the spring, and the larvae borrow under the trees’ bark and eat the tissue inside. (6) After a larva first infects a... Show more Questions below are based on the following draft of a student essay. (1) The emerald ash borer (EAB) is an invasive species of beetle that infects ash trees in the United States and Canada. (2) This insect originated in Asia and was first detected in the United States in 2002 in Michigan. (3) EAB is a serious threat to forests and urban trees in North America. (4) In North America, the EAB infests only ash trees. (5) The female insects lay their eggs on ash trees in the spring, and the larvae borrow under the trees’ bark and eat the tissue inside. (6) After a larva first infects a tree, it dies in three to five years. (7) Ash trees infected with EAB usually show signs of infection before they die. (8) One of the first signs of infection is crown dieback, that is when the crown (or top) of the tree begins to die. (9) Another sign of EAB infestation is leaves sprouting from a tree’s trunk. (10) If a tree manifests these symptoms, scientists or researchers might test the tree for EAB. (11) Trees that test positive for EAB infection are destroyed. (12) Any ash trees within a specific area (usually a half-mile) are also destroyed. (13) EAB and many other nonnative invasive species reek havoc in their new environments. (14) Other invasive species in the United States include the zebra mussel and the Asian long-horned beetle. (15) If EAB is not controlled, this insect could potentially kill off most of the ash trees in North America. (16) The death of these trees would impact biodiversity in the forest and could change the landscape of the United States’ urban and rural woodlands. Show less
Questions below are based on the following draft of a student essay.
(1) The emerald ash borer (EAB) is an invasive species of beetle that infects ash trees in the United States and Canada. (2) This insect originated in Asia and was first detected in the United States in 2002 in Michigan. (3) EAB is a serious threat to forests and urban trees in North America. (4) In North America, the EAB infests only ash trees. (5) The female insects lay their eggs on ash trees in the spring, and the larvae borrow under the trees’ bark and eat the tissue inside. (6) After a larva first infects a tree, it dies in three to five years. (7) Ash trees infected with EAB usually show signs of infection before they die. (8) One of the first signs of infection is crown dieback, that is when the crown (or top) of the tree begins to die. (9) Another sign of EAB infestation is leaves sprouting from a tree’s trunk. (10) If a tree manifests these symptoms, scientists or researchers might test the tree for EAB. (11) Trees that test positive for EAB infection are destroyed. (12) Any ash trees within a specific area (usually a half-mile) are also destroyed. (13) EAB and many other nonnative invasive species reek havoc in their new environments. (14) Other invasive species in the United States include the zebra mussel and the Asian long-horned beetle. (15) If EAB is not controlled, this insect could potentially kill off most of the ash trees in North America. (16) The death of these trees would impact biodiversity in the forest and could change the landscape of the United States’ urban and rural woodlands.
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