Options:
- A. Bedbug
- B. Mosquito
- C. Butterfly
- D. Cockroach
View Answer
C. Butterfly
Biology
which of the following gas discovered by Scheele?
Options:
- A. chlorine
- B. hydrogen
- C. oxygen
- D. carbon dioxide
View Answer
A. chlorine
Bean shaped cells in plants are_________?
Options:
- A. mesophyll cells
- B. xylem cells
- C. phloem cells
- D. guard cells
View Answer
D. guard cells
In all coelentrates endoderm give rise to__________?
Options:
- A. nervous system
- B. digestive system
- C. reproductive system
- D. circulatory system
View Answer
B. digestive system
The simplest amino acid is_________?
Options:
- A. alanine
- B. glycine
- C. valine
- D. phenylalanine
View Answer
B. glycine
The plant dye Henna imparts orangered colour to skin and hairs due to its reaction with which of the following?
Options:
- A. Lipids
- B. Carbohydrates
- C. Amino acids
- D. Protein and amino acids
View Answer
D. Protein and amino acids
Acetabularia is a kind of __________ ?
Options:
- A. Fungi
- B. Protist
- C. Multicellular alga
- D. Unicellular alga
View Answer
D. Unicellular alga
Single circuit heart is found in_________?
Options:
- A. Fishes
- B. Amphibians
- C. Reptiles
- D. Mammals
View Answer
A. Fishes
Each ach nephridium of earthworm opens to the exterior by__________?
Options:
- A. Nephrostome
- B. Nephridiopore
- C. Flame cell
- D. Anus
View Answer
B. Nephridiopore
Production of pyrogens is a __________ phenomenon?
Options:
- A. Protective
- B. Destructive
- C. Constructive
- D. Aggressive
View Answer
A. Protective