A more or less circular ring of mushrooms appears in your yard, apparently overnight. The circle is several yards in diameter. The mushrooms appear to be producing spores. What is the most likely explanation for this circle of mushrooms?
A) The circle represents the fungal life cycle.
B) The mushrooms are all part of the same organism, with mycelia radiating out from the location of a germinated spore.
C) Mushroom spores were dropped by a circling bird, thus explaining the circular shape of the group of mushrooms.
D) One mushroom in the circle reproduced sexually to make all the other mushrooms in the circle.
E) The mushroom plants in the center of the circle were older and have already died or been eaten by herbivores.
B
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Scientific inquiry in biology is linked in a concept map with two sets of understanding researchers might pursue in experiments. Which of these is a good example of why concepts are linked between what is studied and how it might be studied?
A. Environmental changes over recent decades have led to studies of whether specific plants and animals can adapt to the changes. B. A research physician hypothesizes that a new skin therapy will result in healthier skin tissues for healing. C. The influenza virus is spreading rapidly throughout the population and is not being controlled by the current flu medication. D. All of the answer choices are correct. E. A newly identified bacterium in African soils is found to promote plant growth that a researcher will study in crop production.
What is polycistronic mRNA?
What will be an ideal response?
Which of the following is absolutely necessary for diffusion to occur?
a. a phospholipid bilayer b. a living cell c. a selectively permeable membrane d. a concentration gradient
You are standing on top of a mountain in Colorado in front of a cannon. You want to fire a cannonball and hit a flag pole that's on the top of another mountain, many miles away but directly North of you. Which direction should you point the cannon before firing?
A. Northeast B. Northwest C. Southeast D. Southwest E. South F. North