Exam 3 Flashcards
Species can have a range of relationships with each other, from _________ to ________.
antagonistic, mutualistic
What is reciprocal selection?
Selection that occurs in two species, due to their interactions with one another
The anemone and the clownfish is an example of a _______ relationship
mutualistic
Describe our relationship with our gut microbiome
- Mutualistic
- Positive frequency dependent selection
How is our relationship with our gut microbiome mutualistic?
- They (the bacteria) rely on our unused metabolic products for their own metabolism.
- Provide us with a myriad of benefits that are essential for optimal human health.
Scavengers partake in what type of relationship?
Commensalism
What are some examples of antagonistic interactions?
- Predator/prey
- Herbivore/plant
- Deceptive pollination
- Host/parasite
What food do you eat that has “evolved” to be eaten? (i.e. would go under mutualisms)
Fruits!
Describe deceptive pollination. What type of selection is it?
- Negative frequency dependence
- Insect is attracted by color, but is ultimately tricked
Describe commensalism
positive / neutral
Describe mutualisms
positive / positive
Describe antagonisms
negative / positive
What type of relationship is rarest?
Commensalism
Species in ecological relationships with other species produce ____________, and adapt to one another in a process known as ___________
reciprocal selection, coevolution
Humans and dogs have what type of relationship?
Mutualistic
How can we focus on how dogs have changed in relation to us?
By comparing with wolves
________ is an example of co-adaptations due to reciprocal selection
Pollination
Pollinators ______ on flowers to attract them
select
Flowers _______ colors, food rewards that attract
evolve
Flowers _______ on the pollinators to transfer pollen
select
Pollinators _______ hairiness, body shape, and behavior that effectively transfer pollen
evolve
What changes when evolution is interactive?
Co-adaptations due to reciprocal selection
Deceptive pollination is another example of
co-adaptations due to reciprocal selection
What kind of interaction is deceptive pollination?
Can be commensalism or antagonistic