Tina is making a smoothie. First, she puts fruit in the blender. Then, she adds milk and some ice. Next, she turns on the blender to cut up and blend the ingredients. Tina now has a smoothie. Which of the following is the best description of her smoothie? A. a single substance B. a mixture of different substances C. three substances, but not a mixture D. both a single substance and a mixture

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10

Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2