The Process of Natural Selection
For natural selection to occur, there needs to be v_______ within the population
Variation
The first life is estimated to have evolved 3.7-3.9 b_______ years ago
Billion
Unscramble: ARDIWN
Darwin
F______ are any preserved remain, impression, or trace of an ancient living thing and provide evidence for natural selection
Fossils
Common places that Aboriginal people made artworks and paintings
On rocks/In caves
What do you call environmental factors that affect which organisms survive and reproduce (HINT: s________ p_________)
Selection Pressures
The process of species changing over time is called e_________
Evolution
UNSCRAMBLE: IVESRDYTI
Diversity
C_________ a________ is the study of similarities and differences in the body structures of different species
Comparative Anatomy
Megafauna
- mutation
- meiosis
- adaptations
Adaptations
The T_____ of L_______ shows the full evolutionary relationships between all life on Earth
Tree of Life
UNSCRAMBLE: PRONRETIODUC
Reproduction
DNA
The name of a specific megafauna that looks like a giant kangaroo. (HINT: d__________)
Diprotodon
What do you call a change in an organism that helps it survive better in its environment.
Adaptation
What do you call a branching diagram that visually maps the evolutionary history and relationships among different species or groups of organisms (HINT - WE MADE ONE)
Phylogenetic Tree
Unscramble ELSETCNOI RSSEPURES
Selection Pressures
the study of the distribution of species and ecosystems across space and time is called...
Biogeography
It is estimated that Aboriginal people coexisted with megafauna for roughly how many years (If you get it within 5000 years it will count)
30 000
___________ is the fight to obtain limited resources within an ecosystem
Competition
The first life forms were...
Single Cells
UNSCRAMBLE: URSIVALV FO HET TIFTSTE
Survival of the Fittest
Structures that appear similar but have different function are called...
Homologous Structures
Give 2 reasons why megafauna have gone extinct
human hunting
abrupt climate change
not enough food