B1. Characteristics of living organisms

Question 1

How many characteristics of living organisms are there?

Answer 1

7

Question 2

What are the seven characteristics of living organisms?

Answer 2

Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition (MRS GREN)

Question 3

What is meant by “respiration” in living organisms?

Answer 3

Respiration is the chemical reaction that releases energy from the breakdown of food.

Question 4

Define “excretion” in biological terms.

Answer 4

Excretion is the removal of toxic materials, waste products of metabolism, and substances in excess from the body.

Question 5

What does “sensitivity” mean for living organisms?

Answer 5

Sensitivity is the ability to detect or sense stimuli in the internal or external environment and respond to them.

Question 6

How does “growth” occur in living organisms?

Answer 6

Growth is a permanent increase in size and dry mass by an increase in cell number or cell size or both.