<p>Was that the squirrel one? I think that was almost certainly altruism (look it up on wikipedia)</p>
<p>I think the commensalism was the one with elephants? Or am I getting confused with the previous prac tests I took?</p>
<p>Flagella: there was mendel and I don’t remember seeing any other for E, but there might’ve been more scientists mentioned from M section.</p>
<p>Yes. It is altruism. I was wondering how you guys found this test. Was it hard or easy? Do you think the curve will be at least -5?</p>
<p>Yeah squirrel was altruism and I think the cow is mutualism… I hope the curve is big haha</p>
<p>okay plant adaptation
i believe was the cuticle
the waxy substance on the surface of the leaff…pretty suree…</p>
<p>in order for plants to live on land they need a cuticle to prevent water loss</p>
<p>Talib: I put cuticle too.</p>
<p>@hkim: if i remember the question correctly (cow walks, disperses insects, some other organism follows behind so it can eat said insects), then the cow one should be commensalism not mutualism, because the organism eating the insects benefits and the cow is unaware of this organism and thus is unaffected.</p>
<p>(sorry for the run-on) :)</p>
<p>Was cuticle even an answer to the question with stomata in it? Or is the cuticle one a different question.</p>
<p>Oh wait I might’ve put commensalism for that. I know I put commensalism for one of them. Then what did you put for mutualism?</p>
<p>I’m so mad I put down commensalism for the cow one!</p>
<p>The thing is, I saw the word “egret” and automatically put it down without reading the rest of the question because in PR it uses the example of an egret for commensalism. ARGH.</p>
<p>Agnijay: I thought cow was commensalism. Lol</p>
<p>lets all pray for big curve now:D</p>
<p><em>crossing fingers</em></p>
<p>cow WAS commensalism i thought?</p>
<p>the cow one is ALMOST DEFINITELY commensalism.
i remember a similar question during my studies for the AP Bio test.
Apparently, since cows are such large creatures, having flies or whatever on them doesn’t really bother them, so it’s not really considered mutualism?
the birds get food - and the cows don’t really benefit…!?
can anyone confirm?</p>
<p>YES. CONFIRMED!
[url=<a href=“http://king.portlandschools.org/files/houses/y2/animalmaineia/files/species/coyotebq/ecology/Ecology.html]Ecology[/url”>http://king.portlandschools.org/files/houses/y2/animalmaineia/files/species/coyotebq/ecology/Ecology.html]Ecology[/url</a>]</p>
<p>Here’s a compiled list. I took E, so feel free to add M questions (and those who took E, add E cause I can’t remember many of them). Feel free to argue, and bite my head off!</p>
<ol>
<li>Yeast is not an autotroph (common wrong answer: fungi)</li>
<li>Cell division was in metaphase</li>
<li>Photoaxis is the entire organism moving towards light</li>
<li>Phototropism is the plant stem bending towards light</li>
<li>Photosynthesis is the production of glucose with input of CO2 (something like that)</li>
<li>Photoperiodism for animals reproducing in spring/summer</li>
<li>Photoperiodism for birds producing in summer during longer days</li>
<li>Which side is 5’ on gel electrophoresis - cannot be determined (M)</li>
<li>Gel electrophoresis length total = 1400 (M)</li>
<li>NaCl is needed for neurons</li>
<li>Two DNA samples with same proportion of T would have same proportion of G and C as well (M)</li>
<li>Simple dominance for a question about inheritance</li>
<li>30ug (micrograms) of DEC was harmful for mice (M?)</li>
<li>Insect and crustacean are related by the chitin in their exoskeleton (wrong answer: external fertilization)</li>
<li>Number of molecules of CO2 needed to make glucose = 6 (M)</li>
<li>Reptile feces = uric acid (wrong answers: ammonia, urea)</li>
<li>Yeast produce CO2 and alcohol (M)</li>
<li>(Picture with 3 seed experiments) - 4 seeds on a moist petri dish = gravity</li>
<li>(Pic with 3 seed experiments) - plant propped up by stick = touch</li>
<li>(Pic with 3 seed experiments) - plant covered with cut box vs. normal plant = light (wrong answers: pH, temperature)</li>
<li>Proteins do NOT have the function of acting as a template for mRNA</li>
<li>Tickbird eats parasites from the some animal (1st question on test) = Mutualism</li>
<li>One answer had Comensualism (I think with a whale? Commensalism is one animal benefitting and the other being neutral)</li>
<li>Next step for N2 is nitrogen fixation (Don’t remember this one - M?)</li>
<li>Both photosynthesis and cellular respiration produce ATP (I, II, III type question)</li>
<li>Only photosynthesis creates oxygen </li>
<li>Only cellular respiration oxidizes glucose</li>
<li>Fungi are both parasitic and decomposers (not autotrophs)</li>
<li>Flu/Influenza is a virus</li>
<li>Blood sugar levels = homeostasis</li>
<li>Angiosperms are different from vertebraes in that they can do asexual reproduction</li>
<li>Mendel was the first person to see genetics quantitively</li>
<li>Two organisms in the graph where one dies off occupied the same ecological niches</li>
<li>Plant hormones (wrong answer: electrical signals)</li>
<li>Leukocytes do NOT produce hemoglobin (M)</li>
<li>Which is a possible DNA structure was the one with 5’ ends on top right and left with 3’ ends on bottom right and left</li>
<li>Water has cool properties because of polarity/unequal share of electrons among its atoms</li>
<li>Scientist consensus is that burning fossil fuels caused CO2 increase over the years</li>
<li>50% offspring = polydactyly (M?)</li>
<li>Photosynthesis equation questions - either 18O or O can be used by plants successfully (M)</li>
<li>Kids below 5 were affected by the disease for a longer period of time</li>
<li>How closely related two certain species are could be confirmed by DNA sequencing (I think?)</li>
<li>Watson and Crick discovered the structure of DNA (M)</li>
<li>Serrated leaves were dominant, smooth recessive</li>
<li>cross 1 of above experiment: Ss x ss</li>
<li>cross 5 of above experiment: Ss x Ss</li>
<li>two O blood parents can only have O children</li>
<li>cross between red flower and white flower to make pink flower is incomplete dominance</li>
<li>something about the fusing of gametes make a zygote</li>
<li>squirrels = altruism</li>
<li>something about bugs being brushed off is commensalism -> cow?. (i think it was the 4th or 5th question of the first set)</li>
<li>Proteins extend through the membrane</li>
<li>Phosphorous cycle = detergent</li>
<li>amylase breaks down carbohydrates</li>
<li>peptites are formed by these = amino acids</li>
<li>tRNA transfers amino acids</li>
<li>nail stayed in same place because of apical meristem growth at tip and vascular cambium width wise.</li>
<li>mouse and sea lamprey’s hemoglobin differ? (can’t remember answer)</li>
<li>Caterpillars and fledglings- why would scientists worry about the birds? wouldn’t have food source</li>
<li>Caterpillars and fledglings- migration pattern (there has been debate on this)</li>
<li>Caterpillars and fledglings- no confirmation of niche partitioning vs interdependency organism vs competitive exclusion</li>
<li>Moles losing eyesight because it wasnt needed underground in dark, smell and hearing more developed</li>
<li>What happened after global disasters listed? Was it evolution/adaptations to environment? (Possibly an E question)</li>
<li>Directional selection = larger beaks for bugs (E)</li>
<li>Tree growth affected by elevation and pH (E)</li>
<li>Assumption of tree growth = trees all the same age (E)</li>
<li>Graph of pH and elevation experiment = trunk diameter on y-axis, soil pH on x-axis (E) - debate on this question</li>
<li>Iodine deficiency = thyroid goiter</li>
<li>Reptiles had amnion - adaptation over reptiles.</li>
<li>Trisomy 21 = nondisjunction</li>
<li>24 was the answer with 3 million years (can’t remember)</li>
<li>Survival of the fittest -> what does “fittest” mean = most surviving offspring (E)</li>
<li>A couple graphs with pulses per second for grasshoppers? (this was E, I remember the lab but not the questions. I think it was pretty logical.)</li>
</ol>
<p>I don’t get this one though.</p>
<p>nail stayed in same place because of apical meristem growth at tip and vascular cambium width wise.</p>
<p>That is true(factual wise) but I was hesitant to chose it because I didn’t think it really describe why the nail is the same height? If the growth of the tree came from the root tip then the trees grows from down to up. Shouldn’t the nail be higher then?</p>
<p>did anyone else put “stomata on the underside of the leaves” as an answer for a question? it had to do with water retention in plants, but i’m pretty sure it wasn’t the terrestrial adaptation question people have been talking about since i remember i put “waxy cuticle on epidermis” as the answer for another question.</p>
<p>thanks!</p>