Biology: How Life Works
3rd Edition
ISBN: 9781319017637
Author: James Morris, Daniel Hartl, Andrew Knoll, Melissa Michael, Robert Lue, Andrew Berry, Andrew Biewener, Brian Farrell, N. Michele Holbrook
Publisher: Macmillan Higher Education
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Chapter 48.2, Problem 5SAQ
Summary Introduction
The presence of CO2 in the atmosphere is higher and increased day by day by the burning of fossil fuels. According to the Keeling curve, the levels of CO2 have increased dramatically over the past 60 years. Apart from natural CO2 emission like volcanos, human are the major contributors to increase CO2 dramatically by burning fossil fuels, deforestation, and industrial revolutions
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What is the major source of CO2 released by human activities?
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- Given the difficulty in conducting a manipulative experiment to identify the effects of elevated CO2 across the globe, how might we be able to validate the mathematical models that have been created?arrow_forward5b. During which month is CO2 level the highest ? the lowest? This question has two parts and requires two separate answers.arrow_forwardWhat are the major transport mechanisms for CO2? Explainarrow_forward
- What will happen, if there was no CO2 in the earth's atmosphere?arrow_forwardDo normal breathing conditions increase or decrease CO2 concentration?arrow_forwardIs the oxygen that we breathe in the same oxygen that is found in the CO2 that we breathe out? If not, what happens to the Oxygen that we breathe in?arrow_forward
- Why does carbon dioxide show fluctuation each year ?arrow_forwardWhy is it that gram per gream, a mouse's respiratory rate is higher than that of an elephant's? a. The mouse can run faster than an elephant. b. The mouse has a larger brain than an elephant. c. The mouse has more surface area, so needs more energy to stay warm. d. The mouse has more surface area, so needs less energy to stay warm.arrow_forwardTemperature regulation help the respiratory system keep homeostasisarrow_forward
- The concentration of O2 in the atmosphere declines with increasingelevation. Why do you think the times of endurance events at the1968 Olympics, held in Mexico City (elevation: 2200 m), wererelatively slow?arrow_forwardWhy do you think this change in levels occurs about the oxygen levels as blood passes through the lungs? ?arrow_forwardWhat impact would the change in oxygen levels have on living things?arrow_forward
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