Biol 1402- TTU Dr. Held Exam 3
Questions & Answers (Grade A+)
Invertebrate -
correct answer ✅An animal without a backbone that is not of our
own phyla
Pores -
correct answer ✅-Body holes which allow the intake of water
-found on Porifera ("pores")
Preadaptation -
correct answer ✅the change of a function of a structure. In the
case of FISH, it lead to the creation of a "new" structure= jaw
Amphibians -
correct answer ✅-the first chordate group to have true lungs
-legs: evolved from lobe-finned fish, and are held out from the body
-skin is used for gas exchange (lungs=small)
--take in oxygen through their skin. This makes them have to keep
moist
Reptiles -
correct answer ✅-the first vertebrates fully adapted to living on
land
, Biol 1402- TTU Dr. Held Exam 3
Questions & Answers (Grade A+)
-legs are located under the body--> faster
Birds -
correct answer ✅-warm blooded ("endothermic" ="homeoth")-->
metabolic activity needed for flight
-Preadaptation: insulation (trap air)--> flight
-hollow bones
Mammals -
correct answer ✅1. placentals: placenta, long gestation
2. marsupials: pouch, young born early
3. (missing link) monotremes: lay eggs (e.g. duck-billed platypus)
Genus-Homo -
correct answer ✅Peter Pan Theory: human adult= baby chimp
Cnidaria -
correct answer ✅-"needles"
-jellyfish, hydras, corals, sea anemones
-inside each cell is a *harpoon*= *nematocyst* which is triggered
by scent or touch of prey; has a paralytic toxin
Questions & Answers (Grade A+)
Invertebrate -
correct answer ✅An animal without a backbone that is not of our
own phyla
Pores -
correct answer ✅-Body holes which allow the intake of water
-found on Porifera ("pores")
Preadaptation -
correct answer ✅the change of a function of a structure. In the
case of FISH, it lead to the creation of a "new" structure= jaw
Amphibians -
correct answer ✅-the first chordate group to have true lungs
-legs: evolved from lobe-finned fish, and are held out from the body
-skin is used for gas exchange (lungs=small)
--take in oxygen through their skin. This makes them have to keep
moist
Reptiles -
correct answer ✅-the first vertebrates fully adapted to living on
land
, Biol 1402- TTU Dr. Held Exam 3
Questions & Answers (Grade A+)
-legs are located under the body--> faster
Birds -
correct answer ✅-warm blooded ("endothermic" ="homeoth")-->
metabolic activity needed for flight
-Preadaptation: insulation (trap air)--> flight
-hollow bones
Mammals -
correct answer ✅1. placentals: placenta, long gestation
2. marsupials: pouch, young born early
3. (missing link) monotremes: lay eggs (e.g. duck-billed platypus)
Genus-Homo -
correct answer ✅Peter Pan Theory: human adult= baby chimp
Cnidaria -
correct answer ✅-"needles"
-jellyfish, hydras, corals, sea anemones
-inside each cell is a *harpoon*= *nematocyst* which is triggered
by scent or touch of prey; has a paralytic toxin
