BIOL359 Lecture 8: Annotated slides -Adaptation
Document Summary
Reading: chapter 10 (just those sections covered in the notes) Comparative: phenotypic plasticity, trade-offs & constraints. Explanations unconfirmed by hypothesis testing are best regarded as stories. Things to keep in mind when studying adaptations: differences among populations are not always adaptations, not every trait an organism possesses is adaptive, not every adaptation is perfect. : flies do mimic jumping spiders to deter other non-spider predators. Results: this snakes make adaptive choices in regard to habitats, live within a certain habitat i. e. within a rock, under a rock or somewhere on a tree, etc Poikilothermic ectotherm: an organism that regulates its body temperature largely by exchanging heat with its surroundings. Observational studies of adaptations ( p 380) hypothesis is: do garter snakes make adaptive choices when looking for a night time retreat? these are the max temperatures they can survive at.
