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Biology

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301

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Mycology

easy
Biology

Mycology is the study of __________?

A
Virus
B
Bacteria
C
Anti virus
D
Fungi
Explanation and memory cue

Mycology is the branch of biology that studies fungi, including their genetic and biochemical properties, taxonomy, and their use to humans. Therefore, the correct answer is D, Fungi.

302

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Human Physiology

easy
Biology

Blood is cleaned by ___________?

A
Lungs
B
Liver
C
Heart
D
Kidneys
Explanation and memory cue

The kidneys filter waste products and excess substances from the blood, effectively cleaning it. Other organs like the lungs, liver, and heart have different functions related to respiration, metabolism, and circulation, respectively.

303

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Neurons And Nervous System

easy
Biology

Sensory neurons carry messages towards?

A
Muscle
B
Muscles and Glands
C
Sense Organs
D
Brain and Spinal Cord
Explanation and memory cue

Sensory neurons transmit messages from sensory receptors towards the brain and spinal cord, which process the information. Therefore, the correct answer is 'Brain and Spinal Cord'.

304

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Human Vision

medium
Biology

How many megapixels is the human eye estimated to have?

A
1080 MP
B
720 MP
C
576 MP
D
570 MP
Explanation and memory cue

The human eye is often estimated to have a resolution roughly equivalent to about 570 megapixels, considering the density of photoreceptors and the field of view. Among the given options, 570 MP is the closest and most accurate estimate.

305

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Mammals

easy
Biology

___________ is a mammal that can fly?

A
Ostrich
B
Bat
C
Peacock
D
None of these
Explanation and memory cue

Bats are mammals capable of true flight, unlike ostriches and peacocks which are birds and either flightless or poor fliers. Therefore, the correct answer is Bat.

306

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Infectious Diseases

easy
Biology

Which of the following is caused by bacteria?

A
Malaria
B
Tetanus
C
Cancer
D
None of these
Explanation and memory cue

Tetanus is caused by the bacterium Clostridium tetani, whereas malaria is caused by a parasite, and cancer is not caused by bacteria. Therefore, option B is correct.

307

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Heart Anatomy

easy
Biology

To which of the following chambers of the heart is the aorta connected?

A
Left ventricle
B
Right ventricle
C
Right auricle
D
Left auricle
Explanation and memory cue

The aorta is connected to the left ventricle of the heart, which pumps oxygenated blood into the systemic circulation through the aorta.

308

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Ornithology

easy
Biology

Which of the following is a flightless bird?

A
Pavo cristatus
B
Kakapo
C
Passer
D
None of these
Explanation and memory cue

The kakapo is a well-known flightless bird native to New Zealand, characterized by its inability to fly and nocturnal, ground-dwelling habits. The other options, such as Pavo cristatus (peafowl) and Passer (sparrows), are capable of flight.

309

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Human Physiology

easy
Biology

What is the percentage of water present in the human brain?

A
85%
B
95%
C
97%
D
73%
Explanation and memory cue

The human brain is composed of approximately 73% water, which is essential for its proper functioning and maintaining cellular processes.

310

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Marine Fish Identification

medium
Biology

Identify the blackest fish in the oceans.

A
Black Seafish
B
Black Dragonfish
C
Black Sea Horse
D
Black Gillfish
Explanation and memory cue

The Black Dragonfish is known for its extremely dark, almost black coloration, which helps it blend into the deep ocean environment, making it the blackest fish in the oceans among the options given.