Zoology - Online Test
Q1. The product of ecosystem processes are called as
Answer : Option A
Explaination / Solution:
The products of ecosystem processes are called as ecosystem services. Ecosystem services includes purification of air and water by forests and soil formation as well as nutrient cycles
Q2. The value of ecosystem services of biodiversity is
Answer : Option D
Explaination / Solution:
The value of ecosystem services of biodiversity is difficult to determine as it includes services like cultural and spiritual value along with life saving services for all organisms.
Q3. Which of the following is not a part of coxal bone?
Answer : Option A
Explaination / Solution:
The coxal bone (hip bone, pelvic bone) is a large, flattened, irregularly shaped bone, constricted in the center and expanded above and below.
It consists of three parts, the ilium, ischium, and pubis, which are distinct from each other in the young subject, but are fused in the adult.
Q4. Human protein α-1-antitrypsin is used to treat
Answer : Option D
Explaination / Solution:
Transgenic organisms produce useful biological products. Augmentation therapy is the use of alpha-1 antitrypsin protein (AAT) from the blood plasma of healthy human donors to augment (increase) the alpha-1 levels circulating in the blood and lungs of Alphas diagnosed with emphysema.
Human protein α-1-antitrypsin is used to treat emphysema is also obtained from transgenic animal.
Q5. The period between entry of pathogen into the body and appearance of first symptom is called
Answer : Option A
Explaination / Solution:
The period between entry of pathogen into the body and appearance of first symptom is called incubation period. It varies from a few days up to 7 years as in case of AIDS.
Q6. Cardiac muscles are
Answer : Option A
Explaination / Solution:
Cardiac muscle tissue is a contractile tissue present only in the heart. The cardiac muscle fibres are elongated, branched and uninucleate. They appear striated due to the presence of alternate light and dark band. Cardiac muscles are self-contracting and involuntary in nature. They contract in rythmic fashion and help the heart to pump the blood.
Q7. The blue-green algae are also referred as
Answer : Option D
Explaination / Solution:
Blue green algae are also called as cyanobacteria. They are considered as most primitive organism that still survives. It includes different forms of unicellular and multicellular organisms.
Q8. An example of predation is
Answer : Option C
Explaination / Solution:
Biological control method adopted in agricultural pest control are based on the ability of predator to regulate prey population.
Q9. Active form of Which enzyme hydrolyses milk protein in stomach?
Answer : Option B
Explaination / Solution:
Rennin is a proteolytic enzyme found in gastric juice of infants which helps in the digestion of milk proteins.
Q10. AIDS can be transmitted by
Answer : Option C
Explaination / Solution:
AIDS can be transmitted from infected person to healthy person through blood transfusion. The most common way of transmission of AIDS is during sexual intercourse with multiple partners without protection.
