Some students were using a soap solution to represent us a membrane they demonstrated the function of the cell membrane by trying to pass both wet and dry objects through the soap bubble wet objects would pass through easily without breaking the membrane as long as they were small while a dry objects instantly broke the membrane large wet objects often broke the membrane. explained the characteristics of the cell membrane the students were demonstrating and how it maintain homeostasis

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

What is the correct order of cell division? include what happens in each phase

Which of your fossils are most likely heterotrophs? which of them are autotrophs? how do you know?