Options:
- A. Osmoconformers
- B. Osmoregulators
- C. Both depend upon the concentration of sea water
- D. None of these
View Answer
A. Osmoconformers
Biology
Which of the following is a sentimentally arranged excretory system?
Options:
- A. Protonephridium
- B. Metanephridium
- C. Malpighian tubules
- D. Nephrons
View Answer
B. Metanephridium
Protonephridia are present in____________?
Options:
- A. Round worms
- B. Flateworm
- C. Tape worms
- D. Segmented worms
View Answer
B. Flateworm
Malphighian tubules absorb waste materials and salts from__________?
Options:
- A. Blood
- B. Lymph
- C. Gut
- D. Hemolymph
View Answer
D. Hemolymph
Melanin pigment in cockroach is found in__________?
Options:
- A. Epicuticle
- B. Exocuticle
- C. Endocuticle
- D. All of these
View Answer
B. Exocuticle
Oil body is found in the cells of___________?
Options:
- A. Diatoms
- B. Slime moulds
- C. Chlorophycean forms
- D. None of the these
View Answer
A. Diatoms
which of the following is called protein synthesizing machine?
Options:
- A. mitochondria
- B. nucleus
- C. chromosomes
- D. ribosomes
View Answer
D. ribosomes
The following vegetable have 90% of water?
Options:
- A. Cabbage
- B. Lady finger(okra)
- C. Cassava
View Answer
B. Lady finger(okra)
Release of the ovum from ovary is called__________?
Options:
- A. fertilization
- B. ovulation
- C. implantation
- D. none of these
View Answer
B. ovulation
Tobacco mosaic virus was crystallized by__________?
Options:
- A. Pasteur
- B. Chamberland
- C. Stanely
- D. Ivanowski
View Answer
C. Stanely