Biology 2015 | Study Mode

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Question 1
A
similar cells
B
tissues
C
systems
D
related organs
Explanation

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Correct option: A
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Question 2
A
biomes
B
biosphere
C
community
D
ecology
Explanation
Option A is wrong. This is because, a biome is a regional or global land area that is characterized by the plants, animals and climate in that area
Option B is wrong. This is because, biosphere is the part of the earth that supports life.
Option C is correct. This is because, community consists of different organisms living together in a habitat.
Option D is wrong. This is because ecology is the study of organisms and their environment.

Correct option: C
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Question 3
A
skeleton
B
skull
C
head
D
spinal column
Explanation

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Correct option: B
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Question 4
A
Liver
B
Lung
C
Kidney
D
skin
Explanation
Lungs: Remove carbon dioxide
Skin: Sweat glands remove water, salts, and other wastes
Large intestine: Removes solid waste and some water in the form of feces
Kidneys: Remove urea, salts, and excess water from the blood

Correct option: C
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Question 5
A
mouth
B
nostrils
C
ribs
D
diaphragm
Explanation
The act of breathing has two stages inhalation and exhalation

- Inhalation the intake of air into the lungs through expansion of chest volume.

- Exhalation the expulsion of air from the lungs through contraction of chest volume.

Inhalation and exhalation involves muscles:

- Rib muscles = the muscles between the ribs in the chest.
- Diaphragm muscle

Correct option: A
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Question 6
A
capture and re-capture method
B
complete census
C
Transect method
D
systematic sampling
Explanation

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Correct option: D
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Question 7
A
ecosystem
B
habitat
C
population
D
species
Explanation

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Correct option: D
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Question 8
A
Choroid
B
Sclerotic layer
C
retina
D
cones
Explanation
Cone cells, or cones, are one of two types of photo-receptor cells in the retina of the eye. They are responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light. Cone cells are densely packed in the fovea centralis, a 0.3 mm diameter rod-free area with very thin, densely packed cones which quickly reduce in number towards the periphery of the retina. There are about six to seven million cones in a human eye and are most concentrated towards the macula

Correct option: D
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Question 9
A
class
B
amphibian
C
aves pisces
D
reptilia
Explanation

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Correct option: C
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Question 10
A
Gonorrhea
B
Herpes
C
Influenza
D
Syphilis
Explanation

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Correct option: C

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