Species diversity eco and eve

Card Set Information

Author:
xijunzhu
ID:
311055
Filename:
Species diversity eco and eve
Updated:
2015-11-07 12:29:58
Tags:
ecology
Folders:

Description:
lala
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user xijunzhu on FreezingBlue Flashcards. What would you like to do?


  1. more species at what latitudes
    • lower
    • increase in metabolic rate, more active, life span shorter, shorter reproductive cycles
    • northern Australia (hot spot of coastal vertebrate)
  2. endemic
    native
  3. urchin barren
    • in alaska, filled with sea urchins
    • not enough sea otters to eat sea urchin, the place in overgrazed in kelp b/c of number of sea urchin
  4. species diversity
    the effective number of different species that are represented in a collection of individuals
  5. molecular evidence puts animals at how many years ago
    1bya
  6. heterotrophic
    need to take food from environment
  7. phylogenic tree of animals has how many phyla?
    35
  8. different views of animal diversity and phylogenic trees
    • traditional view based on anatomy and embryology
    • newer trees based on molecular evidence
  9. eumetazoa
    all have true tissue differentiation
  10. cephalization
    sensory organs concentrated on anterior end
  11. modern animal phyla developed in how many years
    40 million
  12. cambrian explosion
    • 540 mya
    • all major body plans developed
  13. what caused the cambrian explosion
    • development of predator and prey
    • oxygen levels
    • hox genes

What would you like to do?

Home > Flashcards > Print Preview