Which polynomials are in standard form? x2y3 y 3xy2 – 5a3 12a2b – 15ab2 b3 4xy 2x2y2 xy3 7x4 4x3y – 3x2y2 – y4 14b3 ab3 – 6ab 8ab2 3a4 4a3b – 6a2b2 – 4ab3 – b4

The phrase references available upon request should appear at the __ of your résumé? a. back b. top c. middle d. bottom

Scientists observed a rock stratum and discovered some fossils. the image shows the fossils they discovered. what can you interpret from the image? an illustration showing layers rock with fossils embedded in some rock layers1. the dinosaur and the mammoth existed after the trilobites.2. the dinosaur and the armored fish existed before the trilobites.3. the trilobites and the armored fish died before the dinosaur.4. the trilobites and the armored fish were born after the dinosaur.5. the early mammoth is older than the trilobites.

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers