Options:
- A. Skin
- B. Liver
- C. Lungs
- D. GIT
View Answer
A. Skin
Biology
Which are the four most abundant elements in living cells ?
Options:
- A. carbon, oxygen, nitrogen, sulfur
- B. carbon, oxygen, hydrogen, nitrogen
- C. carbon, oxygen, sulfur, phosphorus
- D. carbon, sulfur, hydrogen, magnesium
View Answer
B. carbon, oxygen, hydrogen, nitrogen
About __________ of the body weight of a mammal is water ?
Options:
- A. 60%
- B. 65%
- C. 70%
- D. 75%
View Answer
C. 70%
Group of living organisms of the same species living in the same place at the same time is called ?
Options:
- A. Community
- B. Population
- C. Ecosystem
- D. Biome
View Answer
B. Population
Which one is not correct for a productive theory?
Options:
- A. It is predictive
- B. It has explanatory power
- C. It discourages suggestion of different hypotheses
- D. None of these
View Answer
C. It discourages suggestion of different hypotheses
The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?
Options:
- A. Molecular biologists
- B. Microbiologists
- C. Freshwater biologists
- D. Social biologist
View Answer
A. Molecular biologists
The evaporative cooling in the respiratory tract of dogs is called?
Options:
- A. Vasodilation
- B. Vasoconstriction
- C. Panting
- D. All of these
View Answer
C. Panting
On wound __________ fight foreign particles, like bacteria?
Options:
- A. White Blood cells
- B. Red Blood Cells
- C. Platelets
- D. Plasma
View Answer
A. White Blood cells
Different species of plants and animals living in the same habitat is called?
Options:
- A. Population
- B. Community
- C. Biome
- D. Habitat
View Answer
B. Community
Sythetic insulin from pork was formed by which technique?
Options:
- A. Biotechnology
- B. Social biological techniques
- C. Parasitology
- D. Both a and c
View Answer
A. Biotechnology