<p>yes, I know there are only 100 MC...</p>
<p>I am just saying that the test is 150 pts (with the old version...the MC score was multiplied by .75 while the FrQ score was multiplied by 1.5)...</p>
<p>now...100 plus 40 only makes 140...and that makes the MC part worth more than 60 percent of the score, which is what it is supposed to be...</p>
<p>So... I'm just wondering what the multipliers are...</p>
<p>I thought most essays were out of 12....did it change?</p>
<p>its 10. im pretty sure; at least its what ive been trained on</p>
<p>I dont know if this is allowed but does any1 have the answers for the 1994 released exam. my teacher postedd the answer key but the fool i am I left the answers in class on friday and test is monday.</p>
<p>the FRQs are out of 10, but there is always 1 or 2 points "bonus". The max score is 10, but one can miss a point in one section and get a point in another section and still have a full score.</p>
<p>Explain the difference between mechanical and kinetic energy.</p>
<p>first, can someone please answer my cell junctions question posted above.</p>
<p>second, what are your/your teacher's predictions for the free response this year?</p>
<p>my teacher feels there's gonna be:
evolution-hardy-weinberg, genetic drift, bottleneck, founder's, etc.
cell membrane- structure/function
regulation-enzymes, hormones, population, gene
structure/function-water molecule, enzyme</p>
<p>she says it has been a long time since a free response question appeared on the structure/function of the cell membrane, altough she might be saying this as a possibility because she is obsessed with the cell membrane.</p>
<p>I would definitely love structure/function of water and enzymes, ahrdy weinberg, and cell-membrane structure and function.</p>
<p>how much should we study invertebrates/protists/fungi? All those complex names.. its really hard.</p>
<p>know mycorrhizae. and know some phylums of invertebrates.</p>
<p>What are mycorrhizae? And vertebrates start from phlyum chordata, right?</p>
<p>Yes, vertebrates start from chordata. </p>
<p>Mycorrhizae are symbiotic fungi that form a mutualistic relationship with a vast variety of plants' roots. There are two varieties of mycorrhizae: endomycorrhizae and ectomycorrhizae. Endomycorrhizae are much more common (about 85% of plants including maize, wheat, legumes) and the hyphae actually penetrate the cells of the roots and form branches called arbuscules inside the cells of the root cortex. Ectomycorrhizae do not penetrate any of the cell walls, but some of their hyphae penetrate the root in BETWEEN the cells of the cortex (much like the apoplastic route for water absorption). Both kinds of mycorrhizae enhance mineral and water absorption for the plant due to increased surface area; also, some secrete growth factors and antibiotics that help protect the plant from bacteria in the soil. </p>
<p>Mycorrhizae play an integral role in helping plants survive in poor, nutrient-deficient soils; they themselves are also benefited by the sugar supply they receive from the plants' roots.</p>
<p>Hope this helps.</p>
<p>Wow that was perfect. Thanks a lot!</p>
<p>You don't need to know that much in-depth about mycorrhizae other than a symbiotic relationship with plant roots. They help absorb water and minerals while the plant provides organic compounds (e.g., sugar).</p>
<p>^^^^^yeah thats all you need to know.</p>
<p>Are you allowed a calculator on the test?</p>
<p>no............................</p>
<p>What's prometaphase? In my class we only learned prophase metaphase anaphase telophase. what happens during prometaphase?</p>
<p>I have one... What is the difference between genetic drift and gene flow?</p>
<p>Genetic drift refers to when a small population of something loses alleles due to attrition, where as gene flow is the flow of alleles due to migration.</p>
<p>omggg i was reaidng the posts on the previous pages and im so glad that MC is worth
more than the essays!
whoohooo! now i dont feel as scared :D</p>