<p>@risubu, i’m not sure. I guess B, but thats based on not much.</p>
<p>Which of the following types of behavior describes the way that mice find their way through mazes?
(A) habituation
(B) imprinting
(C) reasoning
(D) instinct
(E) trial and error
(1999 AP Bio test)</p>
<p>@Facedownclap, i think E. Is there another fancier name for that though?</p>
<p>^yah it’s called operant conditioning (remember skinner box?)
and @silohellenic yes you are correct! Think about the hyphae that are packeaged into tight mycelium.
NEXT QUESTION
10. Which of the following is not an adaptation for reducing the the rate of heat loss to the environment?
a. feathers or fur
b. reducing blood flow to the surface blood vessels
c. contraction of flight muscles before a moth takes off
d. countercurrent heat exchanger
e. thick layer of fat</p>
<p>C? I’m not sure, but I don’t see how that one works</p>
<p>Yeah it sounds like C, but not sure why either. Maybe because contraction would give off heat? Idk…</p>
<p>yeah you’re right. and for future reference, after you answer a question, you put up a new question to keep this thread going.</p>
<p>NEXT QUESTION
5. a blue jay that aids its parents in raising its siblings is increasing its
a. reproductive success
b. status in a dominance hierarchy
c. altrustic behavior
d. inclusive fitness
e. certainty of paternity</p>
<p>^C? </p>
<p>Which of the following led to the increased function of the invertebrate nervous system?
A. Development of an advanced cerebellum
B. Evolution of a ventral nerve cord, thus increasing the ability to move
C. Cephalization of the major sensory organs and the cerebrum
D. Specialization of the sympathetic and parasympathetic systems within the nervous system
E. Occurence of highly developed olfactory lobes in the invertebrate brain</p>
<p>I believe it is C but I am not positive.</p>
<p>yup, C is correct</p>
<p>(risubu thnks for keeping this thread alive)</p>
<ol>
<li> Which of the following exists in RNA surrounded by a protein coat?
(A) Retrovirus
(B) Prion
(C) Prokaryote
(D) Spirochete
(E) Streptococcus</li>
</ol>
<p>Definitely not C, that is a type of cell, E is a bacteria, A is a type of virus. I don’t know what D is and I think B has something to do with viruses so I’ll say B.</p>
<p>Amino acids are to proteins as nucleotides are to…?
a) Lipids
b) Proteins
c) DNA
d) Starches
e) Sugars</p>
<p>@facedownclap, the answer is definitely A</p>
<p>@pudge, c, I love those questions</p>
<p>Which of the following best describes allosteric inhibition of an enzyme?
A. The inhibitor binds to the mRNA to prevent translation of the enzyme
B. The inhibitor binds to the enzyme substrate
C. The inhibitor binds to the enzyme but not at its active site
D. The inhibitor binds to the enzyme at its active site
E. The inhibitor binds to the gene that encodes for the enzyme</p>
<p>Yes, It’s A
D… not sure
7. A student using a light microscope observes a cell and correctly decides that it is a plant cell because
(A) ribosomes are visible
(B) an endoplasmic reticulum can be seen
(C) a cell membrane is present
(D) it has a large central vacuole
(E) centrioles are present</p>
<p>The answer to mine is C.</p>
<p>The answer to yours is D</p>
<p>Which of the following is the most direct result of the heating up of pond water during the summer?
A. The water’s ability to hold oxygen decreases
B. The water’s ability to act as a buffer changes
C. The viscosity of the water increases
D. Hydrogen bonding at the surface of the water increases
E. Less light penetrates the surface of the water</p>
<p>@sino: The answer to yours is A I am like 99% sure. And I thought retroviruses were viruses that used reverse transcriptase to convert their RNA to DNA to be used by the cell they are invading.</p>
<p>How do enzymes speed up reactions?
a) By lowering the activation energy of the reaction
b) By reproducing reactants to increase the number of reactions
c) By synthesizing products
d) By increasing the temperature of the environment of the reaction
e) By introducing catalysts to the reaction</p>
<p>Question:
Name the five best studied/known plant hormones and their function.</p>
<p>@pudge, yes, that’s what retroviruses are. The key point is that they are RNA surrounded by a protein coat, NOT DNA surrounded by a protein coat.</p>
<p>@supertyphoon
auxins - phototropism, plant growth, elongation
cytokinins - root growth and cell differentiation
Giberrilins - stem elongation, flowering
Ethylene - fruit ripening
Absicis acid - inhibits growth, closes stomata</p>
<p>Describe three differences between prokaryotes and eukaryotes</p>
<ol>
<li>All of the following statements about the placenta are correct EXCEPT
A. It permits interchange of CO2 and O2 between maternal and fetal blood.
B. It forms from tissues of both the embryo and the uterus.
C. It permits the mixing of maternal and fetal blood
D. It functions as an endocrine gland.
E. It provides the embryo with a way to dispose of its nitrogenous waste
products.</li>
</ol>
<p>@sinohellenic I’m tempted to say the answer is D but that’s really more of a gut-instinct answer. Guess I need to refresh myself on embryonic development haha.</p>