BIOL 1902 Final Exam Study Questions and Answers with Verified Solutions Top Graded 2024

What adaptation do mammals have for hearing? - Very large ears - Foxes and Wolves What adaptations do Owls have for hearing? (5 things) - Owls use their face - Called Facial Disks Hidden Ears - inside skull Short Bills - down curved bills to prevent interference with sigh and hearing Asymmetrical Ear Canals - gives horizontal separation which allows owl to find prey more precisely - Called Auditory Crosshairs!! Low wing loading - large wings with small body - wing feathers have fringes which make their flight silent what is Echolocation (& what animals uses it?) - Echolocation: sending out sound frequencies and when they hit an animal, they know where it is Bats and Schrews use this method What is one adaptation that mammals, like foxes, have to give it a better sense of smell? - Longer snout To help with smell, many animals have sensory cells in the roof of their mouth, what is this called? - Jacobson's Organ What is the Jacobson's organ called in terms of Mammals - Vomeronasal Organ Why do many mammals hunt right at dusk? - Scent trails are easier to track What animal uses scent primarily to find prey? and how? - 1) snake 2) by using a forked tongue - it allows it to discriminate where scent is coming from what is the term when you are touch sensitive? - Tactile How are racoons adapted to use touch? - they have very sensitive front paws How do river otters use touch? - They use their whiskers (called sensory structures) what is vibrissae? - sensory hairs, located at mouth of animal (like whiskers) What do birds have instead of vibrissae? - Rictal Bristles what is the name of the organ in the nose of a star-nosed mole? - Eimer's Organs How do Rattlesnakes find their prey? - They use heat sensors - found between eye and nostrils - they have infrared heat sensors what is the hunting style of "Active Searching", and which insects use this style? - moving around, trying to find source of food - these use Sensory Adaptations Done by: Wolffe Spiders and Tiger Beetles what is the hunting style of "wait and ambush", and which insects use this style? - sitting and waiting until prey comes along - wait for them to come to them Done by: crab spiders, prey mantids Many spiders use the hunting technique of _______________. Which is: - Traps Which is - when they create webs what is stabilimentum? - thick, zig zag cross strands in web - attract other insects with ultraviolet