Which distance measures 7 units? a number line going from negative 8 to positive 8. A closed circle appears at negative 7 and is labeled l. A closed circle appears at negative 1 and is labeled m. A closed circle appears at positive 2 and is labeled n. A closed circle appears at positive 6 and is labeled p. An orange arrow line is above the number line with an arrow pointing left passed negative 7 and right passed positive 6. It contains all points.

An ecosystem is shown in the illustration. assume that human activities have led to a decrease in the number of eagles. a virus attack on rabbits has led to a decrease in their population in the ecosystem. which two sentences describe likely effects on the ecosystem? 1. there’s an increase in the number of snakes and insects and a decrease in the number of frogs. 2. there’s an increase in the number of snakes and insects, and the storks face increased competition for food. 3. there’s an increase in the number of storks and a decrease in the number of snakes and insects. 4. there’s an increase in the number of frogs and a decrease in the number of storks and insects. 5. there’s a decrease in the number of snakes, insects, and frogs.

How should the syntax in this sentence be changed, if at all? the scientists spent years analyzing the results of numerous medical studies meant to identify the cause of the disease. no change the scientists spent years looking at the results of a variety of different medical studies meant to locate the cause of the disease. the scientists spent years reviewing medical study results to find the cause of the disease. the scientists spent years studying the results of many medical studies in order to uncover the cause of the disease.

What is the meaning of the prefix un-? a. over b. above c. under d. not