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CrazCo

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Everything posted by CrazCo

  1. Thank you for your help!
  2. I am slightly confused by this question. I have narrowed it down to two possibilities however. Could you explain why one is correct. Which of the following describes animals best a) Multicellular, heterotrophic, usually motile b) eukaryotic, invertebrates or vertrebrates and feeds on other organisms
  3. Answer as many as you can if you know any! Thanks in advance! 3. In crayfish their stomach is lined with endoderm; however, their esophagus and intestine with an exoskeleton. What problem will this give the crayfish upon molting time? 5. Why is it necessary for Annelids to have very developed nervous systems; even more so than round and flat worms? 8. Describe the earthworm's primitive heart.
  4. Thank you. I just wanted to know because I took biology this year and am taking physics/chemistry next year. Considering math is my strongest subject I hope that my order will go (from easiest to hardest) Physics, Chemistry and Bio.
  5. nah, i answered them.. but thanks!
  6. 1) How is their digestive system dependent on their other body systems? Explain. 2) They have very complex nervous systems. Why is this structural feature necessary in Annelids? 3) What 2 things seperate Annelids from other worm types? 4) What special function do they perform in terrestrial ecosystems? 5) How is hermaphroditism important to them? 6) How do they perform respiration? If you were to disect them what things would help support this method?
  7. CrazCo

    Botany

    haha i'll try!
  8. CrazCo

    Botany

    lol i was advised to never use wikipedia
  9. CrazCo

    Botany

    1) Why do people say that angiosperms co-evolved with insects? 2) In regards to a flower what are the three main roles played by the petals?
  10. Thank ya! Do you think I should leave my #2 the way it is.. as for number 3 ill have to research those terms before I ask any questions about it .. THANKS! anyone know #2
  11. 1. CTA (Kreb's Cycle) - or potentially oxidative phosphorylation 2. goes back to NAD+ by reducing it's pyruvate 3. alcohol is produced and carbon dioxide is released, entering into the cells.
  12. 1. When adenosine diphosphate is converted into adenosine triphosphate it is what cycle? 2. What occurs to nicotinamide adenine dinucleotide phosphate when produced in anaerobic conditions? 3. What would happen if an enzyme in you removed the CO2 from pyruvate before lactic acid was produced? i could present my thoughts if you'd like to see I atleast tried
  13. TDS? Questions + Guessssses ! Could ya tell me which ones are right and correct those that are wrong? 3 experiements: 1) Place molasses in dialysis tubing and put it into a beaker of water (label beaker A) 2) Place Starch in dialysis tubing and put it into a beaker of water and an iodine solution. (label beaker B) 3) Place starch in dialysis tubing and put it into a beaker of glucose and water. (label beaker C) Questions + Guesses. 1) A 5 percent solution of molasses is place in a beaker filled with a 10 percent one. What happens? How come? Nothing happens because the molasses is unable to diffuse across the 'membrane' 2) List and describe the changes occuring in beaker A. Diffusion of water into the dialysis tubing until equilibrium is reachedddd (any color changes? or any affects occur to the molasses?) 3) List and describe the changes occuring in beaker B after 20 minutes. Iodine and water diffuse into dialysis. 20 mins is not enough time to reach equilibrium but the starch would turn a dark blue color due to the iodine 4) List and describe the changes occuring in beaker C. The glucose and water would diffuse until equilibrium is reached (any color changes though? or anything else notable? 5) If you waited 24 hours how would the results of beaker b change? How come? Equilibrium would be reache and the starch would become darker. 6) Of molasses, starch, glucose, water, salt and iodine which pass through the membrane easily? slowly? not at all? Easily: Water and iodine Slowly: Glucose Not at all: Molasses, Salt and Starch Thanks in advance buh byeee
  14. Lmao @ the link.. ahhhh that was too too funny.
  15. lol this is all about the science I guesssss
  16. Welcome Dan!! Why does his post count say 0??
  17. Maybe you did, haha! I don't even know what they are, I gotsta whip out the dictionary.com remaining two are the ones I haven't gotten Pretty Pweeze! handed it in todayyyy what were you meaning about the aveoles and stuff ? that is stays in your blood or something
  18. lol thanks! and yea this is the HW section, lmao! alveoles? lol, alright :|
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