1. proteins
2. glucose
3. salts
4. water
proteins
1. food vacuole
2. central vacuole
3. water vacuole
4. contractile vacuole
contractile vacuole
1. the amount of urea in blood increases
2. blood comes out along with urine
3. kidney stones are developed
4. All of the above
blood comes out along with urine
1. entirely venous
2. entirely arterial
3. venous and arterial
4. None of the above
entirely arterial
1. uric acid can be excreted in almost solid form
2. the formation of uric acid requires a great deal of energy
3. uric acid is the first metabolic breakdown product of acids
4. uric acid may be excreted through the lungs
uric acid can be excreted in almost solid form
1. renal artery
2. renal vein
3. hepatic artery
4. hepatic vein
renal artery
1. 1.003 to 1.040
2. 1.0 to 1.5
3. 0.001 to 0.002
4. 1.03 to 1.4
1.003 to 1.040
1. gut
2. blood
3. coelom
4. lymph
blood
1. Excretion
2. Secretion
3. Defecation
4. Perspiration
Defecation
1. cockroach
2. nereis
3. pila
4. echinoderms
echinoderms