Unit 1- Evolution & Ecology Flashcards
(19 cards)
What do homologous structures indicate?
A common ancestor
The wings of insects and birds both allow them to fly, this is an example of what kind of structure?
Analogous structure
Close related species have ______
Very similar DNA
The human appendix is indirect evidence of evolution and is called a(n) _____
Vestigial structure
The stages of development of an embryo are considered indirect evidence of evolution because:
Embryos of different organisms look similar
Lamarck’s theory of evolution suggests that:
Organisms use some traits which develop and don’t use other traits which atrophy. The developed traits are passed on to offspring and atrophied ones are not.
A whales flipper and tail and a fish’s fun and tail are examples of what kind of evolution and structures?
Convergent evolution and homologous structures
Organisms which change into different species from a common ancestor is an example of what type on evolution?
Divergent evolution
Organisms which develop similar adaptations as a result of similar environments is an example of what type of evolution?
Convergent evolution
Two organisms which adapt to each other is called ______
Co evolution
A relationship in which one organism benefits and the other is harmed is called ______
Parasitism
Barnacles on the skin of a whale is an example of _______
Commensalism
A bee collects nectar from flowers and helps carry pollen between flowers. This is an example of ______
Mutualism
The process of plants growing in a lava flow is what type of succession?
Primary succession
After logging in the north island a shade intolerant species is ____
Hemlock
The energy passed in the to next tropic level in a food web is usually ____%
10%
What does a secondary consumer eat?
Herbivores & some carnivores
An organism that helps to break down complex organic molecules is called a ______
Detritivore
The producers in the first tropic level are called ______
Plants
