Biology - Online Test
Q1. In which type of parthenogenesis are only males produced?
Answer : Option A
Explaination / Solution:
No Explaination.
Q2. Choose the correct statement from the following
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. Which of the following is a primary sex organ of female?
Answer : Option C
Explaination / Solution:
Ovary is the primary sex organ of female reproductive system in human beings. Egg is released from one of the ovary each month. It also release hormone.
Q4. The number of substrate molecules changed per minute by a molecule of enzyme is called
Answer : Option C
Explaination / Solution:
The number of substrate molecules changed per minute by a molecule of enzyme is called turn over number. Higher the turn over number more effective is the enzyme.
Q5. The mature sperms are stored in the
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. Leaves become modified into spines in
Answer : Option B
Explaination / Solution:
No Explaination.
Q7. Which of the following blood components play a major role in blood coagulation ?
Answer : Option A
Explaination / Solution:
Platelets also called thrombocytes are cell fragments produced from megakaryocytes. Platelets can release a variety of substances most of which are involved in the coagulation or clotting of blood.
Q8. The innate tendency of offspring to resemble their parents is called
Answer : Option D
Explaination / Solution:
The innate tendency of offspring to resemble their parents is called heredity. The offspring resembles to parent due to same genetic combination inherited from parents.
Q9. Which of the following plant reproduces by leaf
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. Organism which depend on dead and decaying organic matter is
Answer : Option A
Explaination / Solution:
A saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals.
This means that saprophytes are heterotrophs. They are consumers in the food chain.
