Ch 9_Section 1

Question 1

How are animal bodies typically organized?

Answer 1

They are organized into higher levels of structures, including tissues, organs, and systems

Question 2

What are four major functions of animals?

Answer 2

1. obtain food
2. obtain oxygen
3. keep internal conditions stable
4. move and reproduce

Question 3

How are animals classified?

Answer 3

1. how they are related to other animals

Question 4

What are the three ways that animals are compared to each other to see how they are classified?

Answer 4

1. body structure
2. how it develops
3. its DNA

Question 5

What is the definition for:

tissue

Answer 5

a group of similar cells that perform a specific function

Question 6

What is the definition for:

organ

Answer 6

a group of several different tissues

Question 7

What is the definition for:

adaptation

Answer 7

structures or behaviors that allow animals to function in their environment

Question 8

What is the definition for:

sexual reproduction

Answer 8

process by which a new organism develops from the joining of two sex cells–a male sperm cell and a female egg cell

Question 9

What is the definition for:

fertilization

Answer 9

When the sperm and egg join together

Question 10

What is the definition for:

asexual reproduction

Answer 10

the process by which a single organism produces a new organism identical to itself

Question 11

What is the definition for:

phylum

Answer 11

35 major groups that all animals can be classified into

phylum is singular; phyla are plural-these are latin words

Question 12

What is the definition for:

vertebrate

Answer 12

animals with a back bone

Question 13

What is the definition for:

invertebrate

Answer 13

animals without a backbone

Question 14

What is the definition for:

a cell

Answer 14

the basic unit of structure and function in living things