Tag: zoology

Questions Related to zoology

Stratum corneum of Frog contains.

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

  1. Living non-nucleated flattened cells

  2. Living nucleated columnar cells

  3. Dead nucleated columnar cells

  4. Dead dry flattened cells

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Correct Option: A

What is correct?

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

  1. Rabbit has renal portal system only

  2. Frog has renal portal system only

  3. Rabbit has both renal and hepatic systems

  4. Frog has both renal and hepatic portal systems.

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Correct Option: D

The parashenoid bone in  frog forms

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

  1. Base of cranium

  2. Floor of cranium

  3. Dorsal side of cranium

  4. Dorsolatral side of cranium

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Correct Option: B
Explanation:

Parasphenoid bone is a flattened and inverted Tshaped bone which lies in the median along the floor of cranium.

Mixing of oxygenated and deoxygenated blood occurs in the ventricle of

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

  1. Scoliodon

  2. Frog

  3. Rabbit

  4. Pigeon.

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Correct Option: B

Pituitary gland is crushed and injected in Frog. Frog will

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

  1. Start laying eggs almost immediately

  2. Change colour

  3. Undergo metamorphosis

  4. Die

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Correct Option: B

It opens into right auricle in frog heart Coronary sinus _______________.

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

  1. Drains impure blood from pulmonary veins to left auricle

  2. Receives impure blood from heart musculature via coronary veins

  3. Drains pure blood in right auricle

  4. More than one options are correct

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Correct Option: A

Which of the following are similar in frog and tadpole?

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

  1. Length of alimentary canal

  2. Mode of respiration

  3. Nature of blood

  4. Habitat

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Correct Option: A

Compared to those of humans, erythrocytes of Frog are

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

  1. With nucleus but without haemoglobin

  2. Nucleated and with haemoglobin

  3. Smaller and fewer

  4. Without nucleus but with haemoglobin.

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Correct Option: B

The venous system of frog differs from that of a mammals in the presence of

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

  1. Renal portal system

  2. Hepatic portal system

  3. Three superior venacava

  4. Hepatic vein

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Correct Option: A
Explanation:

The renal portal system is involved in the function to move blood from the renal glomeruli to the peritubular plexus that surround the proximal and distal convoluted tubules. The renal portal system is found only in fishes, amphibians, reptiles and birds. Thus, mammals have no renal portal system. 

So, the correct answer is option A.

Ureotelic vertebrates are?

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

  1. Fish

  2. Reptiles and cartilaginous fish

  3. Bony fish and mammals

  4. Amphibians; mammals, cartilaginous fish

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Correct Option: D
Explanation:

The excretion of urea is called ureotelism. Land animals, mainly amphibians mammals, convert ammonia into urea. These animals are called ureotelic. Urea is a less toxic compound than ammonia. Eg marine fishes, many amphibians etc.


So the correct option is "amphibian, mammals, cartilaginous fish".