Which of the following describes a scientific use of models in environmental science? O A Sketch is used to show a quick animation of a farming practice.
O A simulation is used to show the interaction between a new species and an old species.
O An infographic is used to show the amount of land lost each year over 10 years.
A graph is used to showcase the different goals of sustainable land use for an organization.

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these

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

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii