Zoology - Online Test
Q1. Read the following about renal threshold :
i. The renal threshold of glucose is 180 mg/100ml of blood.
ii. If blood level of glucose exceeds 180mg, it leads to diabetes insipidus.
iii. If blood level of glucose exceeds 180mg, it leads to diabetes mellitus.
i. The renal threshold of glucose is 180 mg/100ml of blood.
ii. If blood level of glucose exceeds 180mg, it leads to diabetes insipidus.
iii. If blood level of glucose exceeds 180mg, it leads to diabetes mellitus.
Answer : Option D
Explaination / Solution:
The renal threshold is the state when glucose is present in urine. The renal threshold of glucose is 180 mg/100 ml of blood. If blood glucose level exceeds 180 mg, it leads to diabetes insipidus.
Q2. The process of evolution of different species in a given geographical area starting from a point and radiating to other geographical area is called
Answer : Option A
Explaination / Solution:
In evolutionary biology, adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, creates new challenges, or opens new environmental niches.
Q3. A group of closely related families is called
Answer : Option B
Explaination / Solution:
Class includes a group of related orders, Genus comprises a group of related species, species is a basic unit of classification. Hence, the correct option is Order.
Q4. Fundamental ecosystem services are taken as granted because
Answer : Option A
Explaination / Solution:
Researchers have put an average price tag of US $33 trillion a year on these fundamental ecosystems services, which is largely taken for granted because they are free. This service includes nature’s life support system without which life is not possible on this planet.
Q5. In a woman, pelvis is larger and has broader front than a man. It is :
Answer : Option D
Explaination / Solution:
In a woman, pelvis is larger and has broader front than a man. It is an adaptation for gestation and parturition during pregnancy.
Q6. Which out of the following is advantage of chemical safety testing on transgenic animals?
Answer : Option C
Explaination / Solution:
Transgenic animals are made to carry gene that make them sensitive to toxic substance than non-transgenic animals and exposed to toxic substance. Toxicity testing in transgenic animals allows us to obtain results in less time.
Q7.
Statement I: Infection or diseases transmitted through sexual intercourse are called sexually transmitted disease or venereal disease.
Statement II: Tuberculosis is a sexually transmitted disease caused by bacteria.
Statement III: Hepatitis B is transmitted by use of contaminated water.
Answer : Option D
Explaination / Solution:
Infection or diseases transmitted through sexual intercourse are called sexually transmitted disease or venereal disease. Tuberculosis is not transmitted by sexual intercourse, so it is not a STD.
Hepatitis B infection is caused by the hepatitis B virus (HBV). The virus is passed from person to person through blood, semen or other body fluids. Common ways HBV is transmitted include: Sexual contact
Q8. Intercalated discs occurs
Answer : Option B
Explaination / Solution:
Intercalated discs are microscopic identifying features of cardiac muscles fibres. Individual heart muscle cells are connected by intercalated discs to work as a single functional organ.
Q9. The body of fungus is filamentous and it is called
Answer : Option B
Explaination / Solution:
The body of filamentous fungus is known as mycelium, which is a thread like structure. Mycelium produces hyphae and sporegenous cells to produce spores.
Q10. Migration is an adaptation that should be categorised under
Answer : Option A
Explaination / Solution:
The organisms move away temporally from stressful habitat to more suitable habitat is called migration. Migration adaptation is a behavioral attribute.
