1.3 Features Of Organisms

Which feature is unique to animals and distinguishes them from plants?

A scientist discovers an organism with eight legs, no antennae, and two body sections. Which arthropod group does this organism belong to?

Calculate the total number of legs found on three insects and two arachnids combined.

Which combination of features would definitively identify an organism as a mammal?

A student observes a pond organism with moist, permeable skin that lays shell-less eggs in water. The adult breathes through both lungs and skin. Which vertebrate group does this organism belong to?

Which organism would be classified in the fungus kingdom based on its structural and nutritional features?

A botanist examines a flowering plant and observes parallel leaf veins, flower parts arranged in groups of six, and seeds with a single cotyledon. How should this plant be classified?

Which statement correctly explains why viruses are not classified in any of the five kingdoms?

A marine biologist discovers an arthropod with 14 legs, two pairs of antennae, and gills for breathing underwater. Which group does this organism belong to?

An ecologist studying decomposition finds an organism growing on rotting wood. The organism has thread-like structures called hyphae, reproduces using spores, and breaks down the wood by secreting digestive enzymes. Which kingdom does this organism belong to?

Which feature would immediately distinguish a prokaryotic cell from all eukaryotic cells when viewed under a microscope?

A student finds a plant that reproduces without producing flowers or seeds, instead releasing microscopic reproductive structures from the undersides of its leaves. Which plant group does this represent?

Which two components make up the basic structure of all viruses?

A taxonomy student needs to distinguish between reptiles and amphibians. An unknown vertebrate has dry, scaly skin and lays eggs with leathery shells on land. Which classification is correct?

Calculate how many cotyledons would be found in the seeds of four dicotyledon plants and three monocotyledon plants combined.