B1 Characteristics of living organisms

Question 1

define movement

Answer 1

action by an organism or part of an organism causing a change in position or place.

Question 2

define respiration

Answer 2

chemical reactions needed to break down nutrients and release energy for metabolism.

Question 3

define sensitivity

Answer 3

ability to detect or sense stimuli in the internal or external environment and give an appropriate response.

Question 4

define growth

Answer 4

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

Question 5

define reproduction

Answer 5

process that make more of the same kind of organism.

Question 6

define excretion

Answer 6

removal from organisms of the waste products of metabolism, toxic materials, and substances in excess of requirements.

Question 7

define nutrition

Answer 7

intake of materials for energy, growth, and development; plants require light, carbon dioxide, water, and ions; animals require organic compounds and ions and usually need water.