1. Wet
2. Ventilated
3. Free of injury
4. Saturated with oxygen
Wet
1. CUU, CUC, CUA and CUG
2. UAU, UAC, UGU and UGC
3. UGU, UGC, UGA and UCG
4. UGU, UGC, UGA and UAG
5. GUU, GUC, GCU, and GCC
UGU, UGC, UGA and UCG
1. Gas exchange surface tends to collapse
2. Oxygen concentration in water is much lower than in air
3. CO2 concentration is lower in water than in air
4. None of the above
Oxygen concentration in water is much lower than in air
1. Counter-current exchange
2. Ventilation
3. Facilitated diffusion
4. Active transport
Ventilation
1. Cutaneous respiration
2. Pulmonary respiration
3. Buccal respiration
4. None of the above
Cutaneous respiration
1. Skin
2. Skin and lining of buccal cavity
3. Lung
4. Skin, lining of buccal cavity and lung
Skin and lining of buccal cavity
1. UTAC
2. ACTU
3. AGCU
4. ATCG
5. None of these
ATCG
1. Contraction of lung
2. Lowering of hyoid cartilage
3. Ribs and their intercostals muscles
4. Contraction of lung and raising of hyoid cartilage
Ribs and their intercostals muscles
1. Two
2. Four
3. One
4. Seven
Four
1. mRNA
2. tRNA
3. DNA
4. Amino acids
5. All of the above
DNA