 |
1 | |
The binomial system of classification was developed by |
| | A) | Darwin. |
| | B) | Wallace. |
| | C) | Linnaeus. |
| | D) | Malthus. |
|
|
2 | |
It is estimated that about ____ million different organisms exist in the world. |
| | A) | 1 |
| | B) | 5 |
| | C) | 10 |
| | D) | 15 |
|
|
3 | |
Which one of the following sequences shows the correct hierarchy of classification, going from the most inclusive to the least inclusive? |
| | A) | kingdom, phylum, order, class, family, genus, species |
| | B) | kingdom, phylum, class, order, family, genus, species |
| | C) | species, genus, family, class, order, phylum, kingdom |
| | D) | phylum, kingdom, genus, species, family, order, class |
|
|
4 | |
The biological species concept is widely employed for defining species in which of the following kingdoms? |
| | A) | animal |
| | B) | plant |
| | C) | fungi |
| | D) | protist |
|
|
5 | |
The reconstruction and study of evolutionary trees is called |
| | A) | classification |
| | B) | taxonomy. |
| | C) | systematics. |
| | D) | biological species concept. |
|
|
6 | |
At the present time, scientists have named approximately ____ species. |
| | A) | 500,000 |
| | B) | 1,000,000 |
| | C) | 1,500,000 |
| | D) | 10,000,000 |
|
|
7 | |
The biological species concept was stated by |
| | A) | Darwin |
| | B) | Linnaeus |
| | C) | Ray |
| | D) | Mayr |
|
|
8 | |
It has been estimated that approximately ____ species are yet to be identified in the tropics. |
| | A) | 100,000 |
| | B) | 1 million |
| | C) | 2.5 million |
| | D) | 6.6 million |
|
|
9 | |
Cladistic taxonomy places the birds as Archaeosaurs, along with the |
| | A) | mammals. |
| | B) | crocodilians. |
| | C) | turtles. |
| | D) | snakes. |
|
|
10 | |
A squirrel belongs to the Kingdom |
| | A) | Animalia |
| | B) | Mammalia |
| | C) | Chordata |
| | D) | Sciuridae |
|
|
11 | |
Polynomial classification has recently begun to replace the binomial system. |
| | A) | true |
| | B) | false |
|
|
12 | |
The scientific name is derived from the genus and species to which an organism belongs. |
| | A) | true |
| | B) | false |
|
|
13 | |
Biologists currently recognize three kingdoms Plants, Animals, and Protists. |
| | A) | true |
| | B) | false |
|
|
14 | |
Honeybees and gray squirrels are examples of animals that belong to the same Kingdom but to different phyla. |
| | A) | true |
| | B) | false |
|
|
15 | |
The formation of ecological races is the first stage in the formation of a new species. |
| | A) | true |
| | B) | false |
|
|
16 | |
A cladogram conveys direct information about ancestors and descendants of an organism. |
| | A) | true |
| | B) | false |
|
|
17 | |
A clade is a group of organisms related by descent. |
| | A) | true |
| | B) | false |
|
|
18 | |
When a great deal of information is available, cladistic taxonomy is the better approach because it is completely objective. |
| | A) | true |
| | B) | false |
|
|
19 | |
Factors that keep species from hybridizing in nature are called isolating mechanisms. |
| | A) | true |
| | B) | false |
|
|
20 | |
A phylogeny is a branching tree that reflects the evolutionary relationships among species. |
| | A) | true |
| | B) | false |
|