Lecture 2.2 Biology Shared Characteristics

Question 1

Living organisims share what characteristics?

Answer 1

• contain chemical instructions passed down from parent to offspring
• DNA because it can copy itself and offsprings inherit same basic instructions
• Have a Metabolism
• Engergy gets transfered from one living organism to another
  
  • producer to consumer
• ​respond to enviornmental change
• popluation changes from within generations (pepper moth example)
• Reproduction

Question 2

taxonomy?

Answer 2

• to identifey
• name
• classify species

Question 3

Carl Linnaeus

Answer 3

Invented a hierarichal system of binomial nomenclature

identifiing organisms in two parts

GENUS and Species

Question 4

What is the taxonomic Hiererchy?

Which is the most exclusive?

Answer 4

• Species (most exclusive)
• Genus
• Family
• Order
• Class
• Phylum
• Kingdom
• Domain

Question 5

Name the Domain?

Answer 5

• Eukarya
• Bacteria
• Archea

Question 6

What was wrong with Linnaeus Taxonomic Hierarchy?

Answer 6

Ignored important relationships like:

the relatioship between amphibians and some fish

birds relationship to crocodiles.

Ignores vertebrate evolution:

jaws

four limbs

amniotic eggs

Question 7

Charles Darwin

Answer 7

Oragnisms may be related to each other through shared ancestry

created the

phylogenetic or evolutonary tree

Question 8

Why do biologists construct phlogenetic trees?

Answer 8

to determine relatedness and time elapsed since divergence from a common ancestor