class; mammalia

Question 1

2 unique mammalian characteristics

Answer 1

mammary glands and skin has presence of hair

Question 2

correct or incorrect
1. poikilotherms
2.ear pinnae present
3. 4 chambered heart
4. teeth are all one type
5.only consist of ones who are terrestrial and use limbs for locomotion

Answer 2

1st is wrong its homoiotherms
2nd true
3rd yes
4th is incorrect consist of all having diff types of teeth
5. no they can be aquatic aswell, and can be ones who fly swim etc

Question 3

respiration, development, sex, fertilisation

Answer 3

respire thro lungs, development is direct, diff sexes present, fertilisation is indirect

Question 4

are they all viviparous, if no what’s the example for so

Answer 4

ornithorhynchus ie platypus is egg laying thats oviparous

Question 5

examples

Answer 5

macropus [kangaroo], pteropus [flying fox], camelus, macaca [monkey] , rattus, canis, felis, elephas, equus [horse], delphinus, balaenoptera [blue whale], panthera tigris, panthera leo