1. Every year, monarch butterflies travel thousands of miles from their summer homes in northern states and Canada to wintering spots in Mexico and southern California. In spring, they make the journey back again. However, the butterflies die before they reach their northern homes. New butterflies, hatched from eggs laid by migrating monarchs, complete the journey. A scientist wanted to know how the new butterflies found their way to their northern homes if they had never been there before. Which of the following is not a testable hypothesis about monarch migratory behavior? (SC.912.N.1.1)
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1 point
Monarchs can sense Earth’s magnetic field.
Monarchs are prettier than other types of butterflies.
Monarchs follow routes that have many milkweed plants.
Monarchs can smell the remains of the last season’s dead monarchs.
Monarchs are prettier than other types of butterflies.
2. The following graph shows the number of insects present on a field after it has been sprayed with the same insecticide once per year over four years. What is the most reasonable hypothesis for the increase in insects in year four? (SC.912.N.1.1)
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1 point
Captionless Image
The insecticide used in year four was stronger than it was in previous years
The insects in the field in year four were the same species as in previous years
The population of insects resistant to the insecticide had increased over the four years
Insects for from a neighboring field had moved into the area before the insecticide was applied in year four
The population of insects resistant to the insecticide had increased over the four years.
3. Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes and event that results from mitosis but NOT meiosis?(SC.912.L.16.17)
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1 point
two stages of cell division
replication of cellular genetic material
daughter cells that are identical to the parent cell
four daughter cells that are produced from each parent cell