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Biology Final Spring 2017

Last updated over 6 years ago
69 questions
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Last Name, First Name

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You have already collected data on your Redbud seed samples and recorded that information individually and also as a class section. The hard copy Table that you used to record that information will be returned to you for your use in this final. The first thing you need to do is to convert your class totals to percent so they can be compared to one another. To do this take each of the 4 category count (Good Seeds, Aborted Seeds, Bruchid, Chalcid) and divide each by the total number of seeds analyzed by your class. Round off your number to a whole number (ie 3.87 rounds off to 4).

For example: Good Seeds 50/Total Number of Seeds 200 = .25 or 25%

Do this in order and place your answers in the following question boxes for each of the categories. Your entry should be a number (25) versus the decimal (.25) equivalent. Do not enter the % percent sign.
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Good Seeds = ___________%

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Aborted Seeds = __________%

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Bruchid Infested Seeds = ___________%

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Chalcid Infested Seeds = ___________%

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Now, insert the percents you just calculated into the Table so you can compare your class results to the total results for all 5 sections of biology classes.

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Describe how your individual class percents compared to the total percent for all 5 classes.

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Based on your results and using them to support your view, explain whether you think the total infestation percentage poses a threat to reproductive potential of the Redbud tree. (Reproductive potential is the number of good seeds available that could grow into a new plant.)

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Select a possible hypothesis for the experiment.

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Identify a constant in the experiment.

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Quantitative data was collected because students had to judge whether the seeds were good, aborted or infested, however, qualitative data was finally collected when students counted and tabulated the number of seeds in each of the categories.

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Explain the benefit of increasing the sample size. (Why did we use the class totals compared to one set of individual data?)

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State whether you think this study ( underestimated or overestimated ) the reproductive potential of the Redbud tree and why.

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Observe the bar graph drawn above showing the Totals from all 5 class sections. Is this a correct possibility for a graph of the data?

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(Select the best answer). The Redbud tree in our study can be classified as a

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(Select the best answer). The Bruchid Beetle in our study can be described as a

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(Select the best answer.) The Chalcid Wasp in our study can be described as a

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The Bruchid Beetle and Chalcid Wasp go through

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Based on your knowledge of food webs and chains, trophic levels and cycling of matter in ecosystems, insert the three organisms in this study (Redbud Tree (R), Beetles (B), Wasps (W)) into the Energy Pyramid. You can make it easier for yourself by using abbreviations listed after each organism.

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Insert the organisms in this study into the bubbles in this Conceptual Model of Carbon Flow Through the Redbud-Bruchid Beetle-Chalcid Wasp Ecosystem. The 5 terms you will insert are: Atmosphere (A), Bruchid beetles (B), Chalcid wasps (C), Decomposers (D), and Redbud tree (R). To make this easier abbreviate the terms by using the letter provided after each term.

In 2014 biology class students collected the same type of data that you did in your experiment (2017). Study the graphs below comparing the two sets of data.
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The data collected in 2014 and 2017

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Since seeds need water to grow and plants continue to need water to stay healthy, grow and reproduce by making flowers with seeds in them, consider the table showing yearly actual rainfall compared to the average expected rainfall per year for 2013, 2014, 2015 and 2016.

The rainfall amounts for 2013 and 2014 would have influenced the health and growth ability of the redbud tree and the seed collected in 2014.

The 2016 rainfall amount would influence the health and growth ability of the redbud tree in the seeds collected in 2017. (Be sure to consider the rainfall amounts in 2015.)

Select a hypothesis that might be drawn based on this observation.

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The percentage of aborted seeds in 2014 is very high, 67%. One of the causes of aborted seeds is a lack of fertilization from pollination.

A recent concern about the sudden death of honeybee populations has been in the news. Scientists and bee keepers haven't been able to determine the reason behind the deaths. Speculation is that continued use of pesticides has caused increased reservoirs of the chemicals in the bee's ecosystem and the higher concentrations are now causing them to die. Should there be a concern about the loss of pollinators?

For now, you are done analyzing and commenting on the data you collected in your class experiment.
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What happens to a food web's energy at each link?

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Why do all living things depend on the cycling of matter?

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You want to know if you give a plant more water if it will grow taller.

The experiment you design is to use five (5) pepper plants that are already 10 centimeters tall and to give each of them a different amount of water every three (3) day for a month.

One plant will receive no water. One plant will receive 25 ml, one 50 ml, one 75 ml and one 100 ml of water. You will measure the plants after a month and record your data. All plants are placed in the same type of containers, soil and location.

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The results for an experiment to see what the addition of different quantities of water will do to the growth of a plant are shown in the Table above. One possible hypothesis for this experiment is: If plants grow taller with more water, then the plant receiving the most water will be the tallest at the end of the experiment. Based on the results in the Table above, what is correct about the hypothesis.

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Explain why the experiment above had a group of plants that received no water.

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Why is it important to have only one independent variable in an experiment?

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If the hypothesis is: "If plants grow taller with more water, then the plant receiving the most water will be the tallest at the end of the experiment" ,
then the dependent variable in this experiment is _____________________.

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If the hypothesis is: "If plants grow taller with more water, then the plant receiving the most water will be the tallest at the end of the experiment" and you are asked to make a graph displaying the results. An appropriate title for the graph is _________________.

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You are a roadrunner as seen in the animation at your textbook website and you have survived during the day by staying in the shelter of the bush to avoid the heat of the desert. This animation distinguishes between habitat and niche by......

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This completed food web from classzone (your textbook website) shows that beetles are prey for......

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Use the same food web from classzone. What would happen if a herbicide was used to kill all the cattails? Select the answer that isn't true.

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Continue to use the same food web from classzone. Who is/are Teritary Consumer(s) in this food web?

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Continue to use the same food web from classzone. A correct food chain could be shown from the food web as....

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Continuing to use the same food web from classzone, what important group of organisms isn't shown in the food web?

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Continuing to use the food web from classzone, if there is an omnivore in the food web who is it?

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Keystone species like the groundhog in the figure above increase the amount of biodiversity in an ecosystem.

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List one of the biotic factors in a groundhog's ecosystem.

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(Select the best answer.) Which of the following types of biomes is most likely to have the greatest amount of biodiversity?

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The origin of energy in most ecosystems orginates from ...

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The process of ___________________________is what most producers use to obtain energy.

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Why are specialists more susceptible to extinction than generalists?

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Which organism isn't paired correctly with its feeding relationship?

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How does energy flow in a food chain?

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What organism is in the second tropic level in the following food chain: producer--> herbivore--> omnivore--> carnivore

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What cycles through the environment in the hydrologic cycle?

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The majority of the earth's water is stored in .....

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How does oxygen enter the atmosphere in the oxygen cycle?

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Find the incorrect statement about the phosphorus cycle.

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Most of the nitrogen on the earth is stored

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Nitrogen can only be used by organisms in its solid state.

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Bacteria fix atmospheric nitrogen for use by plants and then another bacteria goes through denitrification to return it to the atmosphere.

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Which of the following doesn't return carbon to the atmosphere?

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The storage reservoir(s) of carbon .....

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Why is so much energy lost from one tropic level to another?

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If producers in a food chain take in 1000 kcal of energy, how much energy will likely be passed on to the second trophic level?

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Which of the following is usually found in the largest number in a pyramid of numbers?

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What type of pyramid would show how many grass plants can support a population of grasshoppers?

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Humans can contract lime disease from ticks. Ticks are __________________.

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Dandelions competing with grasses is an example of....

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These giant redwoods are an example of

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The picture above of a spider and grasshopper is an example of

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The picture above of a fungus growing on the side of a tree is an example of

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This bird nest in a tree is an example of a .........

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The picture above of a honeybee on a flower is an example of....