<p>Sponge Extra? Sea anemone intra?</p>
<p>Master, yes and no.</p>
<p>Hydra carry out intracellular digestion after extracellular digestion in the gastrovascular cavity. Hydra works</p>
<p>I thought that the Sponge was intra? because I put it as extra came home, googled it…saw intra</p>
<p>I have a question, on the test booklet there was a four letter code in the right hand corner that had to be put on the answer document for example:
ACBG
20</p>
<p>Was I supposed to put that 20 on there or was it seperate from it?</p>
<p>are you sure?! **** yes!!
would it have been right to explain how phagocytosis works (but not name it cause i forgot :/) and then say they use glycolysis and then fermentation?</p>
<p>Would paramecium be an appropriate example of an organism that fits the characteristics of question 2a-1?</p>
<ul>
<li>Note, in no way does my question suggest what the question was asking. Just saying.</li>
</ul>
<p>i hate prezygotic barriers…</p>
<p>@Jarvis I remember that, you weren’t supposed to put the 20. Besides, there wasn’t even space for the 20?</p>
<p>Ronaldofan94 - I am fairly certain that paramecium would, in fact, fall into that category. </p>
<p>Earthworms, as I answered, would not :/</p>
<p>Continuing with this hypothetical line of thought:</p>
<p>I quote Campbell’s Biology 7th ed:
"Sponges are unusual among animals in that they digest their food entirely be intracellular mechanism. "
It then directs you to a figure about sponges and shows how all digestion is intracellular and occurs as choanocytes beat their flagella to bring in food and then digest it through phagocytosis.</p>
<p>Just to clarify, [Answers.com</a> - What is the difference between intracellular and extracellular digestion](<a href=“Answers - The Most Trusted Place for Answering Life's Questions”>What is the difference between intracellular and extracellular digestion? - Answers)
Sponges do not count as extracellular</p>
<p>There was a line beside the letters on the answer document but the proctor said to put B if we had test form B and to leave it blank no B was there but I was unsure if the 20 underneath the letters could be put in as well.</p>
<p>@those who clarified intracellular and extra</p>
<p>WELL, there goes my 3. gahh. I hate blaming teachers, but I’m just going to blame mine to make me feel less dumb. TEACHER CURNT TEACH WORF A ■■■…damn sponges.</p>
<p>The prezygotic barriers are the following:</p>
<ul>
<li>Temporal isolation</li>
<li>Behavioral isolation</li>
<li>Geographical isolation</li>
<li>Mechanical isolation</li>
<li>Gametic isolation</li>
</ul>
<p>*Note: In no way does discussing prezygotic barriers reveal the specific contents of any FRQ.</p>
<p>jellyfish show both if you google it… either way ididn’t describe it right</p>
<p>Hahahah you guys are hilarious. Rather than talking about the exam, I’m just reading this thread instead =)</p>
<p>What if for a question you described a process, but didn’t actually name it? (like someone was asking about phagocytosis before…although mine doesnt relate to taht)</p>
<p>Lmao, Ronaldofan…the college board police aren’t going to go over to your residence and eat you for dinner…
And I got prezygotic correct…But I put Sponge for extracellular and Amoeba for intracellular…I got half right. Good enough for a high 4 or possibly 5.</p>
<p>I’d rather take necessary precautions. College Board is secretly an organization made up of assassins.</p>