Identify which of the following are characteristics of the vertebrate respiratory surface 1. Moist 2. Vascularized 3. Semipermeable 4. Freely permeable 5. Dry
1, 2, 3
1, 2, 5
2, 3, 5
2, 4, 5
1, 3, 5
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Discussions (10)
1.
thin walls
2.
a moist inner surface
3.
a huge combined surface area
4.
a rich blood supply- each alveolus is sounded by capillaries.
Surely..the answer is (A),bcos a respiratory surface can be dry instead wet/moist.
All options contain [5.dry] which is wrong.Once again,the right ans is (A)-[1,2 and 3.]
the characteristics of a respiratory surface are moist,vascularised, thin, permeable larg but ever dry so this answer is wrong
The selected answer is wrong:
number 30,biology,correc ans is A and not D
Respiratory surface must be:
(1)permiable
(2)vascularised
(3)moist
REF: Check essential biology, page 249
The selected answer is wrong:
Chlorine have one mole. So that will be 1.12*3.55/2.24 = 1.77 ≈ 1.80.
Answer is D.
REF: New school chemistry
