Living Things and Their Habitats：练习题

Which of the following animals is classified as an amphibian?

A student investigates the transpiration pull in plants. They place a white carnation in a beaker of water mixed with blue food dye. After 24 hours, the petals turn blue. Which part of the plant's transport system is primarily responsible for this?

Which of the following describes a producer in a food chain?

A scientist discovers a new organism. It is multicellular, has cell walls made of chitin, and absorbs nutrients from decaying organic matter rather than producing its own food through photosynthesis. Into which kingdom should this organism be classified?

In which of these environments would you most likely find a woodlouse, an invertebrate that needs to keep its body moist to survive?

What is the difference between a vertebrate and an invertebrate animal?

What is the difference between a food chain and a food web?

Why are decomposers, such as bacteria and fungi, essential for the survival of a habitat?

Living Things and Their Habitats
A class is studying the diversity of life in a garden. They find a variety of living things including earthworms, butterflies, sparrows, and rose plants.

(a) Animals can be divided into two main groups: vertebrates and invertebrates. Into which of these groups would you classify a sparrow? Give a reason for your answer.
(b) Earthworms are often found deep in the soil. Name one environmental condition in the soil that helps an earthworm stay alive.
(c) Living things are suited to the habitat they live in. Explain how the wings of a butterfly help it survive in a garden habitat.

Living Things and Their Habitats
In a forest habitat, a population of owls hunts mice. The mice feed on grains produced by plants.

(a) Draw a food chain representing this relationship.
(b) If a new predator, such as a hawk, is introduced that also eats mice, describe the competition that will occur.
(c) Explain the term interdependence using the relationship between the owls and the mice if the grain crops fail due to a drought.