Answer:
A jockey feeds a carrot to his horse first thing in every morning. The horse now "neighs" every morning when it sees the jockey. Neighing is a(n) _*learned*_ response to the carrot provided by the jockey, an _*external*_ stimulus.
Answer:wlwka'klfj'lj'lksjflkel'sej'lefkj'skl 'skf'selkf's;kf'lsl;kf';slk
Explanation: dorry i was slamming my head o my key board XD
the first one is a mollusca
its turbidity currents
100% (all living organisms of them have a rage of tolerance)
Nutrients makes the most sense.