Unit 2 test review-Understanding organisms

These statements compare and contrast Ascomycota and Basidiomycota. I. Some species in both groups can cause plant diseases. II. Species from both groups can be used in making bread rise. III. All species in both groups can be used as food. IV. Ascomycota produce spores in a sac-like structure; Basidiomycota produce spores in a club-shaped structure.Which of the statements are true?

C. I and IV

There are four steps in bacterial conjugation. The second step is missing in this list. 1. Special sex pilus connects two cells. 2. 3. Each cell makes a complementary DNA strand. 4. The cells separate. Which is the missing step for the process of conjugation described?

C. Some DNA moves from one cell to another.

Which level of classification contains orders but is smaller than phylum?

C. class

Sal drew a diagram to compare vertebrates and invertebrates. Which label belongs in the area marked X?

D. Have a backbone

Consider the diagram of the basic structure of bacteria. Which of the labeled structures in the diagram allows bacteria to infect organisms under harsh conditions, such as in the acidic stomach?

A.

Shelby is a plant breeder who is trying to identify the cause of a disease among a group of trees. She observes that the organism reproduces through spores and has reproductive structures that are shaped like a sac. Which type of fungus is it?

A. Ascomycota

In what respect is a mycelium and a fruiting body similar?

A. Both are made of hyphae.

Which is the correct written form of the scientific name that uses the rules of binomial nomenclature?

A. Felis domesticus

Which term represents animals without backbones?

A. invertebrates

Consider the classification levels of a human. Eukarya Animalia Chordata Mammalia Primates Hominidae Homo sapiens Which is the most specific taxonomic level in the classification system above?

A. sapiens

Which statement accurately describes reproduction in animals?

B. All animals can reproduce sexually, and some can reproduce asexually.

Which reason best explains why bacteria are good at causing infections in other organisms?

B. Bacteria are transmitted easily and reproduce quickly.

Which best describes the different modes of bacterial reproduction?

B. In conjugation, a special sex pilus is required to connect two bacterial cells.

Scientists group organisms into kingdoms by looking at specific characteristics. Thermus aquaticus, shown below, is a specialized bacteria called a thermophile. Thermophiles are microorganisms that can live in bodies of water that are extremely hot, such as deep sea hydrothermal vents. Which characteristic most likely describes a mushroom but not Thermus aquaticus?

B. eukaryotic

Which kingdom(s) include both unicellular and multicellular organisms?

B. fungi