Chapter 2: Patterns of Life

Question 1

What is meant by the levels of biological organization?

Answer 1

One level represents a certain degree of size and complexity or body structures.

Question 2

How many levels are in the pyramid of life.

Answer 2

12

Question 3

List the levels of the pyramid of life.

Answer 3

Subatomic particles
Atoms
Molecules
Organelles
Cells
Tissues
Organs
Organ systems
Organism
Population
Community
Ecosystem

Question 4

What does the subatomic particles level contain?

Answer 4

Protons, neutrons, and electrons.

Question 5

What is the nucleus of atoms made of?

Answer 5

Protons and neutrons.

Question 6

What are the electrons doing in the Rutherford-Bohr Model?

Answer 6

Orbiting the nucleus at exceptionally high speeds.

Question 7

When many atoms are stuck together through chemical bonds what are they called?

Answer 7

Molecules.

Question 8

How are chemical bonds made?

Answer 8

They happen when electrons are shared between atoms to form molecules.

Question 9

What is a molecule called when is has carbon?

Answer 9

An organic molecule.

Question 10

What word means little organs?

Answer 10

Organelles.

Question 11

What do organelles do?

Answer 11

They are small organs that carry out specific functions within the cell.

Question 12

What does the nucleus of a cell contain?

Answer 12

DNA.

Question 13

What are particular sections of DNA called?

Answer 13

Genes.

Question 14

What is protein synthesis?

Answer 14

The making of proteins usually done by genes.

Question 15

What is a cell?

Answer 15

A cell is a structure made up of organelles.

Question 16

What is tissue?

Answer 16

Tissue is made up of similar cell connect by an intercellular material.

Question 17

List the basic or primary types of tissues.

Answer 17

Epithelial tissue
Muscle tissue
Connective tissue
Nervous tissue

Question 18

What is epithelial tissue usually?

Answer 18

Skin.

Question 19

How much intercellular material does epithelial tissue have?

Answer 19

Little or none.

Question 20

What tissue connects body parts most of the times?

Answer 20

Connective tissue.

Question 21

What is muscle tissue?

Answer 21

Muscle tissue is tissue mostly made of muscle fibers which relax or contracts, therefore, performing an action.

Question 22

What is so major about nervous tissue?

Answer 22

It ability to communicate and control the body’s internal environment.

Question 23

What is an organ?

Answer 23

An organ is a collection of two or more tissues to perform a body function.

Question 24

What is an organ system?

Answer 24

An organ system is a collection of two or more organ to perform a complex body function.

Question 25

From where does a population start?

Answer 25

Through the breeding or a male and female of the same species.

Question 26

How does a community differ from an ecosystem?

Answer 26

A community includes only different populations or species, unlike an ecosystem which includes rivers, mountains, and communities.