Tree Of Life

Front 1

Biological definition of Life

Back 1

Ability to store & transmit info (genotype) and ability to express that info (phenotype), which allow descent w/modification (evolution) to occur.

Front 2

Arrange the major events that lead to the major lineages of the diversity of life

Back 2

1. Assemble simple molecules into building blocks for complex polymers.
2. Assemble polymers that can store info & catalyze reactions.
3. Add membrane & an energy source to make a living organism.

Front 3

List the major evolutionary events that lead to the major lineages of the diversity of life

Back 3

Origin of Earth 4,500
Earth Cool enough for crust to solidify 4,000
Oldest Prokaryotic fossils 3,500
Atmospheric oxygen begins to appear due to photosynthetic prokaryotes 2,500
Oldest Eukaryotic Fossils 2,000
Origin of multicellular organisms 1,500
Plants & Symbolic Fungi colonize land 500

Front 4

Three Domains

Back 4

Bacteria
Archaea
Eukarya

Front 5

3 Prokaryotic Cell Shapes

Back 5

Spherical (Cocci)
Rod shaped (Bacilli)
Spiral

Front 6

Archaea's Environment

Back 6

Salt-Loving Archaea
Heat-Loving Archaea

Front 7

Protozoans

Back 7

-Protists that live primarily by ingesting food are called protozoans
-Protozoans with flagella are called flagellates and are typically free-living, but sometimes are nasty parasites

Front 8

Amoebas

Back 8

-Flexible in body shape
-The absence of permanent organelles for locomotion

Front 9

Cilliates

Back 9

-Are mostly free-living (nonparastic), such as the freshwater ciliate Paramecham
-Use structures called cilia to move and feed

Front 10

Unicellular Algae

Back 10

-Diatoms, which have glassy cell walls containing silica
-Dinoflagellates, with two beating flagella and external plates made of cellulose

Front 11

Colonial Algae
Seaweeds

Back 11

-Are only similar to plants because of convergent evolution
-Are large, multicellular marine algae
-Grow on or near rocky shores
-Often edible

Front 12

When did green algae evolve into plants?

Back 12

Over 500 million years ago.

Front 13

Charophytes

Back 13

-Modern day lineage of green algae
-May resemble one of early plant ancestors

Front 14

Radial Symmetry

Back 14

Parts radiate from the center, so any slice through the central axis divides into mirror images.

Front 15

Bilateral Symmetry

Back 15

Only one slice can divide left to right side into mirror-image halves.