Zoology - Online Test
Q1. Which of the following is/are poikilotherm:
Answer : Option C
Explaination / Solution:
The organisms that can change their body temperature according to environment are called poiklotherm or cold blooded animals. Tapeworm and naked mole rat are examples of cold blooded animals.
Q2.
Complete the following reaction :
- Maltose — Maltase → Glucose + i
- Lactose — Lactase → Glucose + ii
- Sucrose — Sucrase → Glucose + iii
Answer : Option D
Explaination / Solution:
Maltose in presence of maltase produce two molecules of glucose. Lactose in presence of lactase produce glucose and galactose. Sucrose in presence of sucrose produce glucose and fructose.
Q3. Motile zygote of Plasmodium occurs in
Answer : Option C
Explaination / Solution:
Plasmodium completes their life cycle in two hosts, female anopheles and human beings. The motile zygote of plasmodium occurs in gut of female anopheles, which get transferred to human being during mosquito bite.
Q4. In the prosencephalon, first and second ventricles open into third ventricle by :
Answer : Option D
Explaination / Solution:
In prosencephlon, the first and second ventricles open into third ventricles by foramen of Monro. It is the opening that connects the left and right sides of lateral ventricle in brain.
Q5. Who first saw and described a live cell?
Answer : Option B
Explaination / Solution:
The first man to witness a live cell under a microscope was Anton van Leeuwenhoek, who in 1674 described the algae Spirogyra. Van Leeuwenhoek probably also saw bacteria.
Q6. Name the conjugated protein used as genetic material in living cells
Answer : Option D
Explaination / Solution:
Nucleoprotein, conjugated protein consisting of a protein linked to a nucleic acid, either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). The protein combined with DNA is commonly either histone or protamine; the resulting nucleoproteins are found in chromosomes.
Q7. Which of the following is correct:
Answer : Option C
Explaination / Solution:
Net primary productivity (NPP) is equal to Gross primary productivity (GPP) minus Respiration loss (R). NPP is the available biomass for the consumption of heterotrophs in the ecosystem.
Q8. Vital capacity of our lungs include all of the following except :
Answer : Option C
Explaination / Solution:
Vital capacity includes ERV, TV and IRV or the maximum volume of air a person can breathe out after a forced inspiration.
Q9. The superiority of the hybrid over either parent in one or more traits is
Answer : Option D
Explaination / Solution:
Heterosis, hybrid vigor, or outbreeding enhancement, is the improved or increased function of any biological quality in a hybrid offspring. The adjective derived from heterosis is heterotic
Hybrid obtained from two different plants have one or more traits superior than either of parents.
Q10. Biodiversity is most frequently quantified as
Answer : Option D
Explaination / Solution:
Biodiversity is the presence of diverse kinds of living organisms in a particular habitat. It is most frequently quantified as number of species in particular geographical region.
