Bio SOL Review - U10: Classification

1.  This key can be used to identify the species of some wildflowers found in Virginia. All of the plants have blue or purple flowers with five petals that are fused together. According to this key, to what species does the plant shown belong? 

• Gray beardtongue (Penstemon canescens)
• Virginia bluebell (Mertensia virginica)
• Lyre-leaved sage (Salvia lyrata)
• A Viper’s bugloss (Echium vulgare)

Escherichia coli is the scientific name of a bacterium. What category of classification is Escherichia? 

• Order
• Genus
• Phylum
• Species

An important feature of modern classification systems is that they — 

• group organisms that live in the same habitat
• can incorporate new scientific discoveries
• can predict the discovery of new species
• apply only to organisms that are alive today

Bivalves, such as clams, are found in salt water. The clam captures food particles from water that flows over its gills. Which of these is the best classification of the clam? 

• A chunk feeder
• A decomposer
• A filter feeder
• A grazer

Ascidians are sac-like marine organisms. Their larvae have well-developed brains and dorsal nerve cords. This suggests that ascidians should be classified with the — 

• cnidarians
• chordates
• annelids
• sponges

Which of these organisms contains no specialized cells? 

• Paramecium
• Sea anemone
• Jellyfish
• Sponge

This organism is most closely related to animals in the Phylum Arthropoda, the phylum that contains beetles, because it has:

• an elongated body
• legs
• antennae
• jointed appendages

The body of which of these organisms has the least specialized organization? 

• Jellyfish
• Starfish
• Sponge
• Sea urchin

A biology student collected pine needles from four different species of trees. She then made diagrams showing the number and actual length of needles in a bundle and the common and scientific name of each species. Use her diagram above to help you answer the following question. These four different pine trees are not classified in the same — 

• phylum
• species
• order
• genus

One method of determining the classification of an animal is by comparing the amino acid sequence. Which of these animals most closely resembles the unknown animal? 

• Mouse: Met-Gly-Ser-Tyr-Tyr-Arg-His- Glu-Val-Val-Leu
• Dog: Met-Gly-Ser-Tyr-Tyr-Arg-His-Asp- Glu-Lys-Asp
• Horse: Met-Gly-Ser-Ser-Tyr-Arg-Arg- Asp-His-Glu-Lys-Asp
• Cat: Met-Gly-Ser-Tyr-Tyr-Arg-His-His- Arg-Cys-Thre-Asp