Unit Test — Unit test Answers

A group of sheep run in random directions to confuse a single predator. This is an example of which social behavior?

Which level of classification includes the most species?

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

Brown bears pant, which means they breathe with short, quick breaths. This helps circulate cool air over moist surfaces in the mouth.

Termites are insects that live in colonies. In a colony, the king and a queen are responsible for reproduction. Workers spend most of their time caring for the other termites and building the nest. Soldiers protect the nest from attacks.The organization of the termite colony is an example of which benefit of social behavior?

Jack learned that mice, turtles, and snakes have backbones. He also found out that earthworms, butterflies, and lobsters do not have backbones. He classified the animals into vertebrates and invertebrates.

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?

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?

An example of genetic recombination is shown in the diagram.Which type of bacterial reproduction is depicted in the diagram?

This is a tulip plant. Which statement best describes the flower based on its physical characteristics?

Consider the diagram of the basic structure of a bacterium.Which of the labeled structures in the image allows bacteria to exchange genetic material and thus evolve to be better pathogens?

This diagram summarizes a method to group land plants. Which row in the table best represents the evolution of plants that match the diagram? Labels for Plant Classifications 123456AGymnospermsAngiospermsSeed plantsSeedless plantsMonocotsDicotsBDicotsMonocotsAngiospermsGymnospermsSeed plantsSeedless plantsCSeed plantsSeedless plantsAngiospermsGymnospermsDicotsMonocotsDSeedless plantsSeed plantsGymnospermsAngiospermsMonocotsDicots

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?

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?

Which best describes the difference between protists that have cilia and those that have flagella?

When protists and fungi are compared, which feature is unique to protists?

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

A biologist is studying two organisms, X and Y. She knows that at least one of them is an animal. Organism X only reproduces sexually. Organism Y reproduces both sexually and asexually.

A botanist has discovered a new plant species and is trying to classify the plant. Its seed has one cotyledon, it has six flower parts, its leaves have parallel veins, its stem is herbaceous, and the vascular bundles in its stem are scattered throughout the stem. Which best classifies this plant?

A biologist is in the process of classifying a newly discovered fungus. The fungus is a decomposer and has saclike structures. The organism most likely belongs in the same group as which of the following?