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Terms in this set (72)
Auxin Cell elongation and tropic responses, cell division, stem cell
maintenance, initiation of lateral roots and leaf primordia,
xylem formation, fruit ripening
Cytokinin Cell division, inhibition of leaf senescence, shoot formation;
often acts in opposition to auxin in a concentration dependent
manner
Gibberellin Seed germination, flowering, stem elongation
Abscisic acid Seed dormancy, drought tolerance, stress response; often
acts in opposition to gibberellin
Strigolactone Regulates shoot branching, attracts mycorrhizal fungi
Salicylates Defense responses to pathogen attack
Jasmonic Acid Wound response and plant defense against herbivores
Ethylene Gas
Fruit ripening, stem elongation, leaf and petal senescence
Brassinolide Steroid
Increased plant growth
Systemin Peptide
Plant defense response
CLAVATA3 Peptide
Meristem size regulation
, Suppose the researchers locate a colony of Comparative experiment
coral established in a natural setting, and
begin collecting data on the percentage
bleaching in the colony at regular time
intervals. They observe that the percentage
bleaching increases just after the water
temperatures are observed to rise
dramatically. How would this investigation
be classified?
In this experiment, researchers ran a The investigators would not be able to reject the null
statistical test to determine the significance hypothesis and would conclude that cool-pool and warm-
of the results. The test gave a p value of pool corals could possibly have had the same reaction to high
0.001%. Suppose, however, that the test had temperatures.
given a p value of 50% instead. How would
such a result have affected the conclusions
that were drawn?
The researchers continued another round of Which genes are expressed in warm-pool corals, but not
experiments in which they tested cool-pool expressed in cool-pool corals?
corals for their ability to acclimatize to
higher temperatures. They found that cool-
pool corals could resist bleaching after
prolonged exposure to warm temperatures.
Which is a new question that could be
posed based on this information that would
carry the investigation to the next level?
The advantage of controlled scientific all variables except one are held constant.
experiments is that
Which statement represents a scientific Comparing the genomes of organisms is a means for creating
point of view? phylogenetic trees.
*Meditation helps to solve problems and
therefore should be practiced in schools.
*The positions of the sun, moon, and stars
provide guidance for making decisions.
*Inner strength comes from beauty in
nature.
*Earth was created by divine forces.
*Comparing the genomes of organisms is a
means for creating phylogenetic trees.
Scientists observed that frogs with toe pads Hypothesis
live in trees, not in water. They stated "toe
pads are important for life in trees." This
statement is an example of a(n)
In the scientific method, a hypothesis Is the basis for making predictions
*is formulated solely by speculation.
*is the basis for making predictions.
*is a final answer to a question.
*is formulated by deductive logic.
*does not have to be testable.
Leaf blades are attached to stems by Petioles
Meristems are The location at which cell division takes place throughout the
life of a plant