Unit Test Answers

Which series correctly lists the eight taxonomic levels in order, from the broadest group to the most specific group?

These are the three main organs that make up the plant body. What is the main function of the structure that is identified as A in the picture above?

This chart shows a portion of a dichotomous key.Dichotomous KeyWhich relationship can be determined from this dichotomous key?

Which can modern taxonomy do?

Use this portion of a dichotomous key for tree identification to answer the question.1a. Needlelike leaf ® Step 101b. Broad leaf ® Step 22a. Compound leaf ® Step 32b. Simple leaf ® Step 73a. Leaves attached at single point ® Buckeye3b. Leaves attached at many points ® Step 44a. Leaf bases attached opposite each other on branch ® Ash4b. Leaf bases attached staggered on branch ® Step 5What are the characteristics of a buckeye leaf?

The cactus has a specialized fleshy stem that is specialized to store water for long periods of time. Which plant tissue most likely makes this action possible?

The classification levels of a human are listed below from largest to smallest. EukaryaAnimaliaChordataMammaliaPrimatesHominidaeHomosapiensWhich level of biological classification do Mammalia and Hominidae represent, respectively?

Which level of classification includes the most species?

Phytoplankton, shown on the left in the image below, are microscopic organisms that can be found in freshwater and salt water environments. They perform photosynthesis to get energy and act as an important food source for larger organisms, such as the whale that is shown on the right. Which characteristic describes the whale but not its food source, the phytoplankton?

An organism has the following characteristics: cell wall, autotrophic, unicellular, and eukaryotic. What kingdom does it most likely belong in?

Potatoes are specialized stems that store food for potato plants. Which main tissue would you expect to primarily make up a potato?

Which question would be asked in a dichotomous key?

When an insect is feeding on a plant, which types of tissue are at work to protect the plant and help it heal from injury?

Refer to this portion of a dichotomous key to answer the question.1. (a) Has a single dorsal fin ® 5 (b) Has a double dorsal fin ® 25. (a) Has a small fin on back near tail ® 6 (b) Has no fin on back near tail ® 76. (a) Has barbs near the mouth ® Catfish (b) Does not have barbs near the mouth ® 107. (a) Tail is asymmetrical ® Sturgeon (b) Tail is symmetrical ® 8What would the result be when identifying a fish with a single dorsal fin, no fin on its back near the tail, and a tail that is asymmetrical?

Consider these phylogenetic trees. The first tree is based on physical characteristics. The second tree is based on structure, genetics, and evolutionary history. Which can be concluded from a comparison of the two phylogenetic trees?

Mike is studying the phylogenetic tree for big cats. He made several statements about the tree. Which statement is not true?

Maple trees are often tapped to extract the sap to make syrup. Which type of tissue is the aim of the tree tap?

Scientists group organisms into kingdoms by looking at specific characteristics. Which is a characteristic of a carrot plant?

Dichotomous keys ask

A teacher says she has identified an organism with these characteristics: eukaryotic, multicellular, autotrophic, and a cell wall made of cellulose. Which kingdom is the teacher describing?

When a plant grows as mediated by growth hormones, which main plant organs are at work?

What is binomial nomenclature?

Why is taxonomy important?

A scientist wants to study the interactions of different birds in the southern part of a desert. What should the scientist do first?

Which type of evidence is least likely to result in changes to a phylogenetic tree?