Tag: zoology

Quizzes (289) Questions (5869)

Questions Related to zoology

Multiple choice zoology bio-geo chemical cycles in nature nutrient cycles- flow of substances carbon cycle biogeochemical cycles - gaseous

Phtotochemical phase does not includes ________________.

  1. Fixation of ${CO} _{2}$
  2. Release of ${O} _{2}$

  3. Photolysis of water

  4. Formation of ATP and NADPH
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Photochemical phase includes photolysis of water and production of assimilatory power (ATP and NADPH). It liberates O2  during photolysis of water. 

The photochemical phase do not include fixation of CO2.

Multiple choice zoology bio-geo chemical cycles in nature nutrient cycles- flow of substances carbon cycle biogeochemical cycles - gaseous

Chemical reactions triggered by ___________ transforms the organic material into hydrocarbons.

  1. solar energy

  2. hydroelectric

  3. elevated temperatures

  4. decomposition
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The formation of hydrocarbons from organic matter (kerogen) in sedimentary rocks occurs through a process called catagenesis, which is driven by elevated temperatures and pressures over geological time.

Multiple choice zoology nervous system of man parts of the brain brain and its parts brain

What would happen to the person if cerebellum of his brain is damaged?

  1. He will lose his memory power

  2. He will not be able to swallow food properly

  3. He will be unable to coordinate and stand properly

  4. He will lose his powers ofvision and hearing
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cerebellum is the  part of the brain which is responsible for balancing the body. It helps in coordination of right and left interpretation done by the central nervous system. When the cerebellum, gets damage the coordination between several movements is lost.

So, the correct answer is 'He will be unable to coordinate and stand properly'

Multiple choice zoology nervous system of man parts of the brain brain and its parts brain

Which part of the human brain controls balance, posture and coordination?

  1. Cerebrum

  2. Cerebellum

  3. Medulla oblongata

  4. Thalamus

  5. Hypothalamus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The cerebellum is a small region at the back of the brain. It is the largest part of hind brain. The cerebellum controls smooth, coordinated movements, helps to maintain muscle tone, posture, and balance.

Multiple choice zoology nervous system of man parts of the brain brain and its parts brain

The brainstem is made up of

  1. Midbrain, Pons, Cerebellum

  2. Midbrain, Pons, Medulla oblongata

  3. Forebrain, Pons, Cerebellum

  4. Cerebellum, Cerebrum, Medulla oblongata
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The region of the brain that connects the cerebrum to the spinal cord is called as brainstem. It is made up of midbrain, medulla oblongata and pons. It is a site where many cranial nerves are located. The brainstem is involved in te relay of signals between the spinal cord and brain. It also controls the working of the PNS. Thus the correct answer is option B.

Multiple choice zoology animal diversity - ii (phylum: chordata) circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system frog

__________ are said to be cold blooded animals.

  1. Tiger

  2. Cat

  3. Frog

  4. Rabbit
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Animals can be distinguished in to cold blooded and warm blooded based on their body temperatures. Cold blooded animals can adjust their body temperature depending on their environment.

Multiple choice zoology frog circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system animal diversity - ii (phylum: chordata)

During breeding season, nuptial pad is found in the thumb of

  1. Male frog

  2. Female frog

  3. Both of these

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Frog exhibit sexual dimorphism. Male and female are distinguishable externally only during breeding season when the male develop roughed nuptial pads on the bases of the thumb. Nuptial pads help male in holding female, a sexual embrace called am plexus.

Multiple choice zoology animal diversity - ii (phylum: chordata) circulatory system in frog frog - digestive system, circulatory system, excretory system and reproductive system frog

In frog, the pancreas produces

  1. Two digestive enzymes, one hormone

  2. Three digestive enzymes, one hormone

  3. Three digestive enzymes, two hormones

  4. Three digestive enzymes, three hormones
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In frog, pancreas is made up of lobules, connective tissue and islets of langerhans. The islets of Langerhans secrete a hormone known as insulin. The pancreatic juice contains three enzymes. The trypsin, amylopsin and stoop sin or lipase.