AER of the fin bud changes into an apical ectodermal fold that promotes fin ray development.

TLS Online TPP Program

#Id: 9377

#Unit 11. Evolution and Behavior

Innate behavior - comes from an animal's heredity.

Instinct (nature), in which adaptation occurs over generations by selection.

TLS Online TPP Program

#Id: 9378

#Unit 11. Evolution and Behavior

Learned behaviors - which are genetically hardwired and can be performed without any prior experience or training.

TLS Online TPP Program

#Id: 9379

#Unit 11. Evolution and Behavior

Caused of behaviour

Proximate causes - The subject of cell biology, neurobiology, and many other biological disciplines

Ultimate causes - Their historical causes, especially the action of natural selection

TLS Online TPP Program

#Id: 9380

#Unit 11. Evolution and Behavior

Innate behaviour

Reflex - Allow us to move in response to something in the environment.

The reflex which causes us to close our eyes when something flashes towards us, or to withdraw a foot when we step on a sharp object.

TLS Online TPP Program

#Id: 9381

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 9382

#Unit 11. Evolution and Behavior

The latency between a dog encountering a painful stimulus with its leg and showing the flexion reflex in which, it withdraws its leg usually lies between 60 and 200 ms