For the following, write T on the blank line if the statement is true. If the st

Question

For the following, write T on the blank line if the statement is true. If the statement is false, write on the blank line the word(s) you would substitute for the underlined word(s) in the statement to make the statement true. ______ The branch of biology concerned with identifying, naming, and classifying all living things is taxonomy. _____In binomial nomenclature, the more general of the two names comes second. _____ Prokaryotes used to be classified into one group, but now they are classified in the Domains Bacteria and Archaea. ______ Organisms that live in virtually every environment on Earth belong to the Domain Archaea _____ Organisms that can't live in the presence of oxygen are called facultative anaerobes. ______ Archaea have cell walls made of peptidoglycan. ____ Prokaryotes have their chromosomes located in an area called the nucleoid. ______ Prokaryotes that are round are called spirochetes. ______ A large percentage of bacteria are harmful to humans and cause disease. ______ The outer layer of virus is called a capsid and is made of protein. _______ Protozoans are the only organisms that can convert nitrogen from the air into chemical compounds that plants can use.

Explanation / Answer

1. Answer : True

2. Answer : The more general of the two names comes first.

In binomial nomenclature, the first name refers to genus of closely related organisms while second name refers to specific species of the same genus. So, common or general name comes first.

3. Answer : True

4. Answer : Organisms that live in virtually every environment on Earth belong to domain Bacteria. But archaea lives in extreme environments such as high temperature and pH.

5. Answer : Organisms that can't live in the presence of oxygen are called obligate anaerobes. But organisms that can live both in presence and absence of oxygen are called facultative anaerobes.

6. Answer : Bacteria have cell walls made of peptidoglycan. But archaea lack peptidoglycan and it has repeating units of isoprene.

7. Answer : True.

8. Answer : Prokaryotes that are round are called cocci.

9. Answer : A small percentage of bacteria are harmful to humans and cause disease while large percentage of bacteria are harmless or non-pathogenic.

10. Answer : True

11. Answer : Bacteria are the only organism that can convert nitrogen from the air into chemical compounds that plant can use.

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