classification 2.0

Question 1

Taxonomy

Answer 1

Science of classifying organisms

Question 2

Binomial Nomenclature

Answer 2

Two- word system that is used to name organisms

Question 3

Classification

Answer 3

Placing organisms into groups based on shared qualities

Question 4

Why do we identify organisms?

Answer 4

• distinguish harmless from harmful
• recognise banned animals/products
• identify infectious bacteria/fungi so treatment can be made
• recognise endangered plants/animals
• identify plant/animal used in legal matters

Question 5

Identification can be based on?

Answer 5

• whole specimen
• part of specimen
• microscopic fragments
• genetic material
• indirect evidence

Question 6

Dichotomous key

Answer 6

When each decision involves choosing between just two alternatives

Question 7

Living things have _______ in common

Answer 7

• collect or make energy for use
• respond to stimuli
• grows as it get older
• reproduces
• passes on genetic info
• produces wastes
• made from CELLS!

Question 8

What do taxonomists look at?

Answer 8

1. Homologous structures
2. Analogous structure
3. Chemical tests
4. Life studies
5. Embryology

Question 9

Homologous Structures?

Answer 9

structures that have similar structure but may look different in other organisms

Question 10

Analogous Structure?

Answer 10

structures in different organisms that have looked similar, have similar functions

Question 11

Chemical tests?

Answer 11

analyse blood to find similarities or differences

Question 12

Life studies?

Answer 12

studying stages in the life of an organism

Question 13

Embryology?

Answer 13

study of embryo development

Question 14

The three domains?

Answer 14

• Eubacteria
• Archaea
• Eukaryotes

Question 15

facts about Eubacteria

Answer 15

• prokaryotes
• some are photosynthetic and chemosynthetic
• cell walls are made of peptidoglycan

Question 16

facts about archaea

Answer 16

• thrive in extreme environments such as salt lakes ( halophiles )

Question 17

Facts about Eukaryotes

Answer 17

cells that have membrane bound organelles and nucleus

classified into 4 kingdom

• plants
• fungi
• protists
• animals

Question 18

classification from largest to smallest?

Answer 18

• Kingdom
• Phylum
• Class
• Order
• Family
• Genus
• Species

Question 19

Species

Answer 19

the ability to breed with other organisms of that same species to produce fertile offspring

Question 20

What is the Binomial system?

Answer 20

naming of organisms

Question 21

What are the two parts of a scientific name?

Answer 21

1 - Genus of the animal ( capital letter )

2 - species of the organism ( small letter )

Question 22

Advantages of scientific names?

Answer 22

• they are universal
• indication of relatedness of different organisms
• common names may be misleading

Question 23

What are hybrids not?

Answer 23

a species

Question 24

What are viruses made of?

Answer 24

a protein coat

Question 25

Can viruses reproduce themselves?

Answer 25

no, they use genetic machinery of a host cell