Quiz 6 (Amphibians) Flashcards
1
Q
Amphibians Characteristics
A
- 1st vertebrae
- Tetrapods
2
Q
Amphibian Life Cycle (not development)
A
- Hydrophilic eggs
- juveniles in water
- dual life
3
Q
Amphibian Skin
A
- best for water and moist environments
- can dry out easily
- external toxins can permeate into skin
- many glands (many secretions)
- toxins to defend (ie. dart frogs)
4
Q
Amphibian Body Temperature
A
- Ectothermic (cannot generate own heat)
- Poikilothermic (cannot retain heat, it matches with environment)
5
Q
Ectothermic
A
cannot generate own heat
6
Q
Poikilothermic
A
cannot retain heat, it matches with environment)
7
Q
Amphibian Bones
A
- skeleton of bone
- large mouth (when compared to body size)
- small teeth in upper jaw, only used to hold prey
8
Q
Most Amphibians have a __ _________ heart
A
3 chambered
9
Q
Frogs and Toads
A
Order Anura
10
Q
Frogs and Toads (Order Anura)
A
- most successful group (more species in more habitats)
- most specialized (large mouth, jumping legs)
- typically solitary, until mating season
- no tail
11
Q
Frog Characteristics
A
- long hind legs
- wet smooth looking skin
- large webbed hind feet
- lay eggs in clusters
12
Q
Toad Characteristics
A
- shorter hind legs
- dry bumpy skin
- less webbed hind feet
- lay eggs in straight rows
13
Q
Breeding of most Order Anura (frogs and toads)
A
- males will sing in a - Corus
- males have an expandable vocal sac “Ribbit!
- male thumbs will enlarge to hold on to female underarms, male on top female on bottom - Amplexus
- external fertilization, female lays eggs and male fertilizes them
14
Q
Corus
A
the singing of male amphibians during mating season
15
Q
Amplexus
A
the mating of amphibians where the male is on top and female is on the bottom
