The branch of biology that is concerned with identifying, naming and classifying organisms is called _____.
The binomial system of naming species was developed by _____.
|D)||Watson and Crick|
The first word in an organism's binomial name refers to the _____.
Changes are made in classification when _____ data increases.
|D)||All of the above|
Approximately _____ species of animals, plants and microorganisms have been named.
Which of the following is a kingdom of multicellular, photosynthetic organisms from the domain eukarya?
The sequencing of _____ suggests that all organisms evolved from a common ancestor along three distinct lineages.
The domain Eukarya contains _____ kingdoms.
Organisms in the Domain Eukarya all have cells with _____.
|A)||a cell wall|
Organisms that are eukaryotes that form spores, lack flagella, and have cell walls containing chitin are classified as _____.
It is suggested that protists evolved from _____, according to the five kingdom system of classification.
Using a traditional five kingdom system of classification, a multicellular, autotrophic, eukaryotic organism would be classified as a _____.
Traditionalists say _____ evolved from reptiles.
|D)||None of these|
In the 1880's, Ernst Haeckel proposed adding the _____ kingdom to the system of classification in order to separate the unicellular microscopic organisms from the multicellular largely macroscopic ones.
Which of the following is true of a cladogram?
|A)||It is subjective and reflects the bias of the investigator who created it.|
|B)||It tells us the exact time at which derived characters evolved.|
|C)||It shows the sequence in which characters evolved in the group being studied.|
|D)||None of these|
When determining the phylogeny of closely related species, investigators study _____ because it changes so quickly.
The relatedness of groups of organisms is more accurately determined when _____ data is examined.
Organisms classified in Kingdom Animalia _____.
|A)||are motile unicellular organisms|
|B)||have a notochord at some time in their life cycle|
|D)||lack claws, scales, horns and hoofs|
The most inclusive category of classification is _____.
The taxa that will be placed in clades in a cladogram form the _____.