Zoology - Online Test
Q1. If kidney tissues are supplied with blood low in oxygen then :
Answer : Option C
Explaination / Solution:
If Kidney tissues are supplied with blood having low oxygen in it then tubular reabsorption get stopped as energy is required for active absorption.
Q2. What was the resultant found in place marked E?
Answer : Option C
Explaination / Solution:
In Urey and Miller’s experiment the product formed after the continuous sparking in the mixture of gases at high temperature were some amino acids like glycine and alanine. Sugar and nitrogenous base were also obtained from same set up by some other scientist.
Q3. A group of plants with similar traits of any rank is
Answer : Option C
Explaination / Solution:
Each category in taxonomic hierarchy represents a rank and is commonly termed as taxon. Hence, the correct option is Taxon.
Q4. The ecological niche of an organism will not represent
Answer : Option B
Explaination / Solution:
Ecological niche is the area surrounding an organisms that help them in survive, grow and reproduce.
The ecological niche of an organism represents the position and the role played by the organism in the ecosystem in which it lives.
The ecological niche of an organism will not represent resources it cannot utilize.
Q5. In the following two graphs :
i.first graph shows: twitch summation etanus fatigue.
ii. second graph shows: incomplete and complete tetanus.
i.first graph shows: twitch summation etanus fatigue.
ii. second graph shows: incomplete and complete tetanus.
Answer : Option C
Explaination / Solution:
Graph 1 shows muscle fiber tension with time. Which occurs in order as : twitch→summation→tetanus→fatigue.
Graph 2 shows complete and incomplete tetanus. Tetanus is also known as lockjaw, which is a infection characterized by muscle spasm.
Q6. Full form of GMO is
Answer : Option C
Explaination / Solution:
GMO is an abbreviation for genetically modified organism, an organism whose genetic material has been modified, especially by genetic engineering.
Q7. Saheli is
Answer : Option A
Explaination / Solution:
Saheli is an oral contraceptive for females contain non-steroidal preparation. It is different from the other pills as it should be taken once in a week irrespective of daily in case of other pills.
Q8. Which one is a heterocrine gland?
Answer : Option A
Explaination / Solution:
Pancreas is called as heterocrine gland because it acts as both endocrine and exocrine gland to secrete hormone as well as digestive enzymes. Testis and Ovary are also heterocrine glands.
Q9. When a fresh water protozoan is placed in marine water
Answer : Option B
Explaination / Solution:
When fresh water protozoan is placed in marine water, the contractile vacuole disappear because the function of vacuole is to expel out excess water but in case of marine water, the water should be retained instead of getting expelled. If the contractile vacuole will not disappear the cell will get dehydrated.
Q10. The death rate if 8 individuals in a laboratory population of 40 fruit flies died during a particular week will be:
Answer : Option C
Explaination / Solution:
Death rate of a population =
Here death rate =
Hence, death rate of fruit fly died is equal to 0.2.
