Biology Unit Questions
Taxonomy
1. Circle all that apply: Ursus arctos and Ursus maritimus are both in the same:
a. Species
b. Genus
c. Family
d. Kingdom
2. Why are viruses not considered living?
3. Circle all that apply: Two organisms in the same class are also in the same:
a. Genus
b. Species
c. Family
d. Phylum
4. What two things is the modern system of classification based on?
5. Use the above cladogram to answer the following questions:
a. The rabbit is the only animal in this diagram that has a placenta. Circle the true
statement(s) below that can explain this:
i. The ancient ancestor of the animals had placentas.
ii. Marsupials will soon have placentas.
iii. The ancient ancestor of rabbits did not have placentas.
iv. Lizards and snakes are not related to rabbits.
b. Which of the following evidences was most likely compared to develop this chart?
i. Fossil evidence at differing strata
ii. Carbon-14 dating
iii. Physical features
iv. DNA sequence comparisons
c. Which of the following conclusions can be made based on the diagram above?
i. Birds and dinosaurs share an ancestor with each other that they do not share
with lizards and snakes.
ii. Marsupials and monotremes live in similar habitats.
iii. Amphibians and turtles have almost identical DNA sequences.
iv. Habitat data is a better determination of evolutionary relationships than DNA
sequences.
d. Which two animals are most closely related?
i. Turtles and amphibians
ii. Monotremes and lizards
iii. Dinosaurs and birds
iv. Turtles and crocodiles
6. How is the method of obtaining energy different in fungi versus in both plants and animals?
7. What microscopic characteristic would be most noticeably different between an organism in
kingdom Protista verses a bacteria?
8. List the kingdoms that are made up exclusively of single-celled organisms.