Each year, all the ginkgo trees in an area drop their leaves atnearly the same time, a phenomenon called "The Night of theGinkgo". Give a plausible (not necessarily correct!), goodscientific hypothesis for this observation.

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Hubert KochLv2

30 Sep 2019

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Which is FALSE? First exclude the four correct answers.

a) The leaves are only a small part of the plant and must produce enough energy-rich sugars to support all non-green parts like roots or flowers.

b) Only when overall photosynthetic activity is greater than overall respiration activity of the whole plant can the plant accumulate biomass and grow.

c) Sugar produced in photosynthesis must support the plantâs energy needs both day and night.

d) Leaves perform more photosynthesis than respiration because they donât have mitochondria.

e) In trees that drop their leaves over the winter, some sugar produced in one year is stored in stems or roots and fuels the production of new leaves in the next year.

choose two nonhuman species that interact with each other, such asbees and flowers, or predator and prey species, or two species thatcompete. Or, you can consider the effect of an environmental factoron living nonhuman organisms, such as the effects of light or soundon plants or animals, or how food preference, or nutrientquantity/quality affect plants or animals. These are just a fewexamples. Your observations may lead you to many other types ofquestions about living organisms, their interactions, andrequirements for life.

Start with an Introduction/Observation and move through the stepsof the scientific method as outlined below. Your paper shouldfollow this format.

Remember, you don't have to actually do the experiment, just writewhat you would do to test your hypothesis. The experiment youcreate to test your hypothesis should contain a control andtreatment group and be detailed enough that it could bereproducible by others.

Observations/Introduction:

Describe your observation.
Include background information about your observations that youhave found using references.
List and cite references using APA format.
Question: Ask a question about the observation that you havemade.

Hypothesis: Write a statement that describes your explanation forthe observation and question.

Prediction: What do you predict as outcomes (results) of thisexperiment? (An if-then statement)

Controlled Experiment and Methods:

Describe the experiment.
Describe variables to be held constant.
Note variable to be tested.
List controls.
Tells what data will be collected.
Describe how only one variable is being tested at a time, whileothers are held constant.
Results: Give the results (data) for the experiment. This will becreated (imagined) by you because you are not actually doing thisexperiment.

Conclusion/Discussion:

Do you reject or accept the hypothesis based on the results?
Discuss what this means in terms of the hypothesis, or need foradditional experiments, or perhaps practical use of the results.

lilacplatypus641

Observation: Capuchins rub their fur with leaves.
Capuchin monkeys live in central and south America. They live insocial groups and they are noteworthy for their intelligence,specifically their tool use and social learning. They areomnivores, and feed on a vast range of foods. One seeminglypeculiar behavior is leaf rubbing - Capuchin monkeys sometimes rubthemselves with leaves from specific plant species.

Use the above observation to answer each of the followingsections.

1) Asking a question.Questions can be general, and potentiallyanswered with hypotheses at two or even all four of the levels ofanalysis. Questions can also be more specific and very clearlyintended to be addressed with hypotheses at only a singlelevel. An example of a general question about the aboveobservation that is addressable by hypotheses at all four levels issimply: âWhy do capuchin monkeys rub leaves on themselves?â Wewould like you to write a question that reflects only one ofTinbergenâs four questions and that directly relates to some aspectof the behavioral observation provided above. Letâs start bylooking at some example questions. Your first job is to identifywhich of Tinbergenâs questions (level of analysis) each of theserelate to (Proximate Causal/Mechanistic; Proximate Developmental;Ultimate Fitness; Ultimate History).

What benefit do the monkeys get from leaf rubbing?
a) Level of analysis: (answer all of these on theanswer sheet provided on last page)

Which other monkey species also do this type of behavior?
b) Level of analysis:

How do juveniles acquire this behavior?
c) Level of analysis:

How do capuchins identify which plant to use?
d) Level of analysis: