问题 填空题

真菌的主要特征:真菌有______,如______;也有______的如______,______的菌体是由许多细胞连接起来的______构成的,每个细胞都有细胞壁、细胞膜、细胞质和细胞核.

答案

真菌有单细胞的如酵母菌,也有多细胞的,如霉菌;真菌的菌体是由许多细胞连接起来的菌丝体构成的,营养菌丝深入营养物质内吸收营养,直立菌丝(气生菌丝),生长到一定阶段,顶端产生孢子囊,孢子囊内有大量的孢子,孢子落到适宜的环境就会萌发生出菌丝,形成新个体.这样的繁殖方式叫做孢子生殖.真菌的每个细胞都有细胞壁、细胞膜、细胞质和细胞核.体内不含叶绿体,营养方式为异养.

故答案为:单细胞;酵母菌;多细胞;霉菌;真菌;菌丝体.

单项选择题
单项选择题

Rarely has there been as neat a fit between a book’s subject and its author’s biography as in "Bound Together: How Traders, Preachers, Adventurers, and Warriors Shaped Globalization" by Nayan Chanda. It’s easy to see why the subject fascinates Chanda; he’s a self-proclaimed Francophile(崇拜法国的人) of South Asian origin, who studied French in Calcutta, then took courses on China in Paris, ran a magazine in Hong Kong and ended up launching an online journal devoted to globalization at a venerable Ivy League institution. And in this engaging analysis, he answers such intriguing questions as" How did the coffee bean, first grown only in Ethiopia, end up in our coffee cups after a journey through Java and Colombia"

In examining these specific questions -- and larger ones about how the world is interconnected m Chanda does not emphasize his own experiences. But when appropriate, he effectively uses small, personal details to cut very big social, economic, cultural and sometimes biological processes down to size. He shows how close scrutiny of the iPod he gave his son as a birthday present can reveal much about the multinational origins of such objects. It was officially touted as" designed" by an American company and "assembled in China"; he found that it actually contained component parts and software with ties to India, Japan, South Korea and Scotland. And he marvels at the speed with which it traveled from Shanghai to New haven via Alaska and Indiana, as well as at his ability to track its progress thanks to bar codes.

The debate over globalization has grown so polarized that many readers are probably itching to know whether Chanda belongs in the" pro" or" anti" camp. One theme of "Bound Together" is that thinking in these terms doesn’t make sense. Those who gather at what are somewhat misleadingly called" anti- globalization" rallies, after all, don’t oppose all the ways the world is shrinking. And their campaigns make use of many technologies (notably the Internet) that are crucial to 21st-century-style globalization.

Indeed, Chanda’s stand on the subject might be called that of a cautiously optimistic fatalist. He asserts that the only reasonable response to globalization is twofold: accept that the world is not going to stop shrinking and figure out ways to maximize the positive and minimize the negative effects. He acknowledges the downsides of globalization (social inequities, the spread of new diseases and so on), yet argues that in many ways being "bound together" ever more tightly can ultimately be a good thing, benefiting more and more individuals and groups.

This is a book filled with fascinating information. Even readers who disagree with his claims will come away with a host of new facts to draw upon. They will also learn a lot about the history and deployment of the term globalization, to which Chanda devotes an excellent chapter. In addition, many will never look at an iPod in quite the same way again.

In the author’s opinion, those who oppose globalization are ()

A. against all the ways and means related to it

B. not accepting the reality of a shrinking world

C. misunderstood for the name of their camp

D. against the technologies typical of globalization