Why do you suppose plants and forests appeared in large numbers before large animals did? Several of the choices may be correct. Select the options you expect to be the strongest contributing factors. A. Animals need food, and there was none on land before plants. B. Plants were driven to land by scarce resources

Why do you suppose plants and forests appeared in large numbers before large animals did? Several of the choices may be correct. Select the options you expect to be the strongest contributing factors. A. Animals need food, and there was none on land before plants. B. Plants were driven to land by scarce resources

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter43: The Biosphere

Section: Chapter Questions

Problem 2CT: Owners of off-road recreational vehicles would like increased access to government-owned deserts....

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Why do you suppose plants and forests appeared in large numbers before large animals did? Several of the choices may be correct. Select the options you expect to be the strongest contributing factors.Choose one or more: A.The increased oxygen levels produced by land plants accelerated animal evolution. B.Plants were driven to land by scarce resources in the oceans, such as light and minerals. C.Plants had to change less to survive on land. D.It was too cold for animals at first. E.There was not enough oxygen for lungs to be effective before plants colonized land. F.The order was pure chance and could have gone either way. G.Animals need food, and there was none on land before plants. H.Animals are more susceptible to radiation and needed more ozone in order to survive out of the water.
Which of the following is NOT a question suitable for scientific inquiry? Select an answer a Which fossil fuel is the dirtiest to burn? b Is it ethical to put heavily polluting industries in low-income neighborhoods? c Does the burning of fossil fuels contribute to global warming? d Does the use of renewable energy sources contribute to ozone depletion?
Why does an urban park full of trees have a greater cooling effect than an equal-sized urban golf course covered in grass? Pick the BEST answer a) Because trees sequester carbon into their wood b) Because trees photosynthesize c) Because trees create temperature differentials that improve airflow d) Because trees transpire producing evaporative cooling and grass does not
Which of these hypotheses does not explain why increased CO2 levels in the atmosphere could cause a decrease in the productivity of some crops because of changes in climate? A) There could be increases in average winter temperatures that reduce the growth of crops. B) There could be decreases in precipitation in some regions that reduce growth in some crops. C) There could be shifts in the ranges of some important species in the community, such as pollinators, that cause reduction of growth in some crops.
In a desert ecosystem, small mammals eat plants and snakes eat small mammals. What would probably happen to the amount of plant material if all the snakes suddenly died? At firs, the amount of plants material would:
If only one half of the flora in the world existed in 2110 (perhaps due to deforestation), what do you predict the atmospheric carbon level would be ? How would you change the simulation to reflect this? What is the relationship between increased carbon in the ocean and increased carbon in the soil? How else might carbon be transferred to soil? Using the data generated by the simulation, determine the mathematical relationship between the percentage increase in fossil fuel consumption and the increase in atmospheric carbon. Is the relationship linear?
If in the near future the scientific community decides with absolute certainty that there is only a 50% chance that climate change will occur. Why might we want to still move forward with reducing emissions to prevent climate change without higher certainty? a. because it is the right thing to do b. because the potential impacts of climate change pose a serious threat to mankind c. because protecting nature is more important than money d. because it is politically advantageous, although not fully necessary at that level of certainty
Imagine a sealed terrarium containing a plant and a beetle. How does each organism provide resources for the other? Could each organism survive if it was the only living thing in the terrarium? Why or why not?
Secession is a gradual process within an ecosystem in which some species replace other species. When a volcano creates a brand new island on rock and then plants start growing to grow this is an example of what?
If you visited a forest in North America and a forest in Japan at the same latitude (same climate) what would you likely find?
Researchers hypothesize that a tropical wet forest would likely have a higher biodiversity than a tropical dry forest. Make a claim based on evidence in the graph to support or refute this statement.
, please look thoughtfully at the image below of a 4000 year-old bristlecone pine in the White Mountains of eastern California. Then, please answer the following questions: How might such old trees provide information about the region's climate? Does this area appear hospitable to plant growth? What (in the image) supports your response? What environmental factors might account for this (referring to that which you included in your answer to the previous question)?