General Education of China Normal University

TheIVolume(Single-choice questionTotal30Question40Points)

Part 1:1 ~ 20Sub-questions, each sub-question 1Points.

1. which of the following does not belong to a certain structure level () 650) of the life system? This. width = 650; "Title =" with image 005.jpg "src =" http://s3.51cto.com/wyfs02/M02/3E/78/wKiom1PHZLrhsQbhAAhtrMTXkgk490.jpg "alt =" wkiom1phzlrhsqbhaahtrmtxkgk490.jpg "/>

A. crawler B. All the fish in a pond c. a kitten D. Biosphere

2. Viruses, blue-green algae, and yeast all have the following substances or structures ()

A. Genetic material B. Cell Membrane C. BS D. Cell Wall more subject questions please log on to Shanghai net www.shsxw.com

3. What is correct about the "System ()

A. Every layer of the life system is a "system". The smallest "life system" that can fully express life activities is a cell.

B. biological molecules such as proteins and nucleic acids can also be regarded as "systems" and are also at the level of "Life Systems ".

C. The "ecosystem" is a layer of the life system. It represents all creatures in a natural region that are directly or indirectly linked to each other.