Download ch 2 cloze

1
Chapter 2 It’s Alive!! Or Is It?
The Big Idea All living things share _________ and needs.
Section 1 Characteristics of Living Things
Key Concept Living things have six characteristics in common.
Living Things Have Cells
• All living things have six characteristics in common. One characteristic
is the presence of_____.
• A cell is the structural and __________ unit of life.
• A cell is the _________unit that can carry out the activities of life.
• Most cells are too ________ to be seen with the naked eye.
• In single-celled___________, different parts of the cell perform different
functions.
• In organisms with many cells, different kinds of cells perform
_________functions.
Living Things Sense and Respond to Change
• The second characteristic shared by all organisms is the ability to sense
changes in the environment, and to ________to those changes.
• A change that affects the activity of an organism is called a _________
(plural,_________).
• Examples of stimuli include chemicals, gravity, _________, sound, and hunger.
• While conditions may change in the surrounding environment, an
organism must maintain a constant ___________environment to survive.
• The maintenance of a stable internal environment is called
_________.
• Different types of organisms achieve homeostasis in different ways.
Living Things Reproduce
• A third characteristic shared by living things is the ability to produce
offspring like___________.
ANSWERS: smallest, light, stimulus , Characteristics, internal, stimuli
,respond, organisms, specialized, cells, small, homeostasis, functional,
themselves