Simple + Complex Organisms (Unit Test Review)

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

Which best explains why angiosperms are the most diverse and successful plant group today?

A. Reproduction is aided by flowers, protected seeds, and insect pollinators.

A student studies a plant specimen. The student notices that the plant has seeds that are enclosed by a fruit. Which term can the student use to definitely describe the plant based on the evidence that they see?

A. angiosperms

Which term represents animals without backbones?

A. invertebrates

Darius made a diagram to compare and contrast two benefits of social behavior. Protection ----- Foraging Which description belongs in the area marked "X"?

A. keeps group safe from predators

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 kingdom(s) include both unicellular and multicellular organisms?

B. Fungi

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 level of biological classification is the lowest level that butterflies (invertebrates) and dogs (vertebrates) have in common?

B. kingdom

This table lists examples of plants. Which row (A, B, C, or D) in the table accurately categorizes the plants as gymnosperms and angiosperms?

D

Beans, peaches, and tomatoes are all in the same group of plants. What do these plants have in common?

D. They bear flowers and seeds.

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

D. have a backbone

Which of these are characteristics of all animal cells? Check all that apply.

~ They contain a nucleus. ~ They are eukaryotic. ~ They contain membrane-bound organelles.