Aquatic arthropods respire through__________?

✅ B. Robert hooke

Option A: Robert brown Option B: Robert hooke Option C: Rudolf virchow Option D: Antoni van leeuwenhoek Correct Answer : Robert hooke Read more

✅ C. Scurvy

Option A: Beri-Beri Option B: Architis Option C: Scurvy Option D: Night-blindness Correct Answer : Scurvy Read more

✅ C. They are present lateral to the oesophagus.

Option A: There are 5-7 pairs of heart. Option B: They are present between 1-7th segments. Option C: They are present lateral to the oesophagus. Option D: They pump blood from ventral to dorsal vessel. Correct Answer : They are present lateral to the oesophagus. Read more

✅ C. Gymnosperms

Option A: Spheospsida Option B: Filicineae Option C: Gymnosperms Option D: Angiosperms Correct Answer : Gymnosperms Read more

✅ D. All of these

Option A: Chordate Option B: Protochordate Option C: Lower chordate Option D: All of these Correct Answer : All of these Read more

✅ A. 4.5 to 6.2 million

Option A: 4.5 to 6.2 million Option B: 3.4 to 6.8 million Option C: 3.2 to 7.2 million Option D: 4.0 to 5.2 million Correct Answer : 4.5 to 6.2 million Read more

✅ A. C-H bond

Option A: C-H bond Option B: C-O bond Option C: C-N bond Option D: P-O-C bond Correct Answer : C-H bond Read more

✅ B. Regeneration

Option A: Conduction Option B: Regeneration Option C: Reflex Option D: Movement Correct Answer : Regeneration Read more