本题目来源于试卷: Interaction & Interdependence C.9 Transfers of Energy & Matter，类别为 IB生物学
[单选题]
Which of the followib t;g,+me o4q difc alwk:w+i4nh+,r 8ng-*z5sn)d i wktweys- 1 statements are true?
I. Living organisms release energy from organic compounds and convert it to heat during the process of respiration.
II. Since heat cannot be transformed into other forms of energy it is lost from ecosystems.
III. Light energy from the Sun is converted to chemical energy by producers and then converted to heat during respiration.
A. $ I$ only
B. $ I$ and $II$
C. $ I$ and $III$
D. $ I$, $II$ and $III$
参考答案: D
本题详细解析:
Explanation: All the statements above are true. In most ecosystems, light energy from the Sun is captured by producers via photosynthesis and transferred to consumers through feeding. As organisms respire, they lose energy in the form of heat which cannot be reused by organisms. There is a constant input of energy from the Sun.
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