Answer:
Explanation: communication from three U.S. diplomats to Secretary of State ... U.S. minister to Spain, failed in his mission to secure the purchase of Cuba (1853), Marcy ... The resulting diplomatic statement, the Ostend Manifesto
(a) is the answer in studying this actually!
This is the correct answer as to to <span>what extent has the presence of a true coelom in animals changed over the course of evolution:
</span><span>the presence of absence of a true coelom appears to have changed mutliple times during the course of evolution</span>
Do it on your own don't give up... mistakes happen for a reason
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Almost all the eviroment was something to exploit, trees became lumber, land became developed land .<span>They tried there best to conquer their environment which was often very brutal and spoiled they settled with very use ful thing</span>
