Unit 1 test

Question 1

The Hierarchy(ranking) of living things

Answer 1

1. Biosphere
2. Ecosystem
3. Community
4. Population
5. Organism
6. Organ system
7. Organ
8. Tissue
9. Cell
10. Organelle
11. Macromolecule
12. Molecule
13. Atom
14. Electron

Question 2

All Living Things:….

Answer 2

• Are composed of cells
• Reproduce
• Display Heredity
• Require Energy
• Respond to Stimuli
• Maintain Homeostasis
• Evolve and Adapt

Question 3

Living things are composed of cells

Answer 3

Cells are the basic components of all living things. Some living things are unicellular, like bacteria, others are multi-cellular, like humans.

Question 4

Living things Reproduce

Answer 4

All living things reproduce, by either asexual or sexual means.

Question 5

Living things Display Heredity

Answer 5

Living organisms inherit traits from the parent organisms that created them.

Question 6

Living things require energy

Answer 6

Living things require energy, usually in the form of ATP. They use this energy to carry out energy-requiring activities such as metabolism and locomotion.

Question 7

Living things respond to stimuli

Answer 7

All living things respond to stimuli in their environment.

Question 8

Living things maintain homeostasis

Answer 8

All living things maintain the state of internal balance.

Question 9

Living things evolve and adapt

Answer 9

Living things adapt to their environment and evolve.

Question 10

What is Life

Answer 10

Life is defined as any system capable of performing functions such as eating, metabolizing, excreting, breathing, moving, growing, reproducing, and responding to external stimuli.

Question 11

Species

Answer 11

All organisms capable of breeding freely with each other under natural conditions.

Question 12

What is the system called for naming organisms

Answer 12

• Binomial Nomenclature also known as Linnaean system of classification
• 1st name is the Genus which is capitalized, in italics(or underlined)
• 2nd name is the species which is not capitalized, in italics(or underlined)

Question 13

Define Taxonomy

Answer 13

The science of classifying all organisms, taxonomists classify both living and fossil species

Question 14

What are some criteria for classification

Answer 14

• appearance
• how they reproduce
• diet
• cellular structure
• method of movement
• physical structures
• heredity information
  etc. ..

Question 15

Levels of classification

Answer 15

1. Kingdom
2. Phylum
3. Class
4. Order
5. Family
6. Genus
7. Species

Question 16

Define Phylogeny

Answer 16

The study of evolutionary relatedness between, and among species; shown using a phylogenetic tree. Can be used to create a dichotomous Key.

Question 17

If organisms belong to the same family, will they belong to the same class?

Answer 17

yes, family is a sub-group of a class.

Question 18

If organisms belong to the same phylum, will they belong to the sam Order?

Answer 18

Not always, many orders can be present in a phylum.

Question 19

Biology

Answer 19

Biology is the study of living things and things that were once alive and how they interact with the matter and energy around them.

Question 20

6 different Kingdoms

Answer 20

• Animalia
• Plantae
• Fungi
• Archaea/archaebacteria
• Bacteria/Eubacteria

Question 21

What are the three domains of life

Answer 21

• Eubacteria
• Archaea
• Eukaryotes