Features of organisms：练习题

Which group of vertebrates is characterized by having moist, scale-less skin and laying eggs without shells in water?

A student identifies a flowering plant that has flowers with three petals. Which other feature is most likely to be observed in this monocotyledon?

A plant is observed to have leaves with parallel veins and flowers with parts in multiples of three. What is the most likely classification for this plant?

Which group of arthropods possesses two pairs of antennae and is usually aquatic?

An organism is multicellular, contains a nucleus, and has cell walls made of chitin. It absorbs nutrients from decaying organic matter. Into which kingdom should this organism be placed?

State two main features that are used to distinguish birds from all other groups of vertebrates.

Identify two anatomical features that distinguish arachnids from insects.

Compare plants and fungi in terms of their cell wall composition and how they obtain their nutrients.

The classification of animals into different groups is based on specific shared morphological features.

(a) Identify two structural features that are characteristic of all insects, which distinguish them from other groups of arthropods.
(b) Compare amphibians and reptiles by stating one similarity and one difference regarding their skin or body coverings.
(c) State two main cellular features used to place an organism into the plant kingdom rather than the animal kingdom.

The variety of life is organized into kingdoms and further sub-groups based on identifiable structural features.

(a) Compare crustaceans and arachnids by stating the number of pairs of legs and the number of pairs of antennae possessed by each group.
(b) Describe two structural features of ferns that distinguish them from flowering plants, and state how they differ in their method of reproduction.
(c) A student is examining two different flowering plants. Plant A has leaves with parallel veins, while Plant B has leaves with branching (net-like) veins. Identify the group each plant belongs to and describe the likely difference in the number of cotyledons found in their seeds.