Polypeptides are synthesized from amino acid building blocks. the condensation reactionbetween the growing polypeptide chain and the next amino acid to be added involves the loss of (a)a water molecule.(b)an amino group.(c)a carbon atom.(d)a carboxylic acid group.4-4the variations in the physical characteristics between different proteins are influenced by the overall amino acid compositions, but even more important is the unique amino acid )number.(b)sequence.(c)bond.(d)orie ntation. page 1 of 29

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.

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

Eutrophication caused by human nutrient pollution.