Characteristics of living organisms：练习题

According to the syllabus, which characteristic is described as a permanent increase in size and dry mass?

Which row correctly matches the characteristic of life with its biological purpose?

Which of the following describes a process involving metabolism as defined in the description of respiration?

A botanist identifies a process in a plant where materials are taken in for energy, growth, and development. What is the name of this characteristic?

A plant is observed over a period of several days. Which of the following observations provides the most direct evidence of the characteristic of sensitivity?

Define movement as it applies to all living organisms according to the syllabus.

Distinguish between growth and reproduction as characteristics of living things.

Using the example of a plant shoot growing towards a light source, distinguish between sensitivity and movement, and explain why respiration is necessary to facilitate this specific growth response.

Living organisms are defined by several key characteristics.

(a) Identify the characteristic that is defined as an action by an organism or part of an organism causing a change of position or place.
(b) State the definition of growth as provided in the syllabus.

The characteristics of life allow organisms to maintain their internal state and react to their surroundings.

(a)< /b> Growth< /b> is defined as a permanent increase in size and dry mass. Explain why biological growth must be permanent< /i> and why an increase in size alone (such as when a seed absorbs water) is not always considered growth.
(b)< /b> Sensitivity< /b> involves the ability to detect and respond to changes. Describe the difference between an internal< /i> stimulus and an external< /i> stimulus, providing one specific biological example for each type.< /p>