Lecture 2.2 Biology Shared Characteristics Flashcards
1
Q
Living organisims share what characteristics?
A
- 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
2
Q
taxonomy?
A
- to identifey
- name
- classify species
3
Q
Carl Linnaeus
A
Invented a hierarichal system of binomial nomenclature
identifiing organisms in two parts
GENUS and Species
4
Q
What is the taxonomic Hiererchy?
Which is the most exclusive?
A
- Species (most exclusive)
- Genus
- Family
- Order
- Class
- Phylum
- Kingdom
- Domain
5
Q
Name the Domain?
A
- Eukarya
- Bacteria
- Archea
6
Q
What was wrong with Linnaeus Taxonomic Hierarchy?
A
Ignored important relationships like:
the relatioship between amphibians and some fish
birds relationship to crocodiles.
Ignores vertebrate evolution:
jaws
four limbs
amniotic eggs
7
Q
Charles Darwin
A
Oragnisms may be related to each other through shared ancestry
created the
phylogenetic or evolutonary tree
8
Q
Why do biologists construct phlogenetic trees?
A
to determine relatedness and time elapsed since divergence from a common ancestor
