Biology

Animal Tissue and Anatomy

1,715 Questions

Test your knowledge of animal tissues and anatomical structures with these practice questions. The set covers human organs, reproductive systems, and sensory receptors. These fundamental biology topics frequently appear in medical and competitive examinations.

Sensory receptorsReproductive organsBody structure frameworkEar drum pressureExcretory system

Animal Tissue and Anatomy Questions

Multiple choice

Periblem gives rise to:

  1. pericycle

  2. cortex

  3. medullary sheath

  4. epidermis

  5. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Periblem gives rise to cortex. The cortex is the outermost layer of the stem or root of a plant, bounded on the outside by the epidermis and on the inside by the endodermis.

Multiple choice

________ lay cleidoic eggs.

  1. Birds

  2. Reptiles

  3. Insects

  4. All of the above

  5. NA
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cleidoic eggs have a protective shell and are laid out of water.

Multiple choice

Which of the following ducts are found in internal ear of humans?

  1. Wharton duct and parotid duct

  2. Parotid duct and papillary duct

  3. Papillary duct and cochlear duct

  4. Cochlear duct and endolymphatic duct

  5. Endolymphatic duct and thoracic duct
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cochlear duct (also known as scala tympani) is one of the perilymph-filled cavities in the cochlear labyrinth of the human ear. Endolymphatic duct is found in internal ear of humans. It is a small duct connected with saccula and ending blindly in the endolymphatic sac.

Multiple choice

The layer of fat under the skin of a polar bear act as _______ for the body.

  1. insulators

  2. filters

  3. mimic

  4. absorbent and coolant
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Polar bears live in the polar regions where the temperature may go down to -370C. To survive in these conditions, their body is covered with a layer of fat under the skin. This acts as a heat insulator and does not allow the body heat to escape.

Multiple choice

What is the site of calcidiol production?

  1. Kidney

  2. Gastrointestinal tract

  3. Liver

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

Calcidiol is a prehormone that is produced in the liver by hydroxylation of vitamin D3 (cholecalciferol).

Multiple choice

Which of the following statements is not true?

  1. An organ's metabolic requirements are proportional to the number of blood vessels in it.

  2. Double circulation takes place through a two-chambered heart.

  3. Haemoglobin in a metamorphosed amphibian has a lower affinity for oxygen.

  4. Because of lack of an extensive system of blood vessels, open systems require less energy to build and maintain.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is incorrect. Fishes have a two-chambered heart and only single circulation is seen in them. Double circulation means that blood passes through the heart twice during each cycle of the circulatory process. In animals that have double circulation (blood circulation) systems, the heart has more than two chambers.

Multiple choice

The Adam's apple is a forward protrusion of the largest cartilage of the larynx. Which of the following cartilages form(s) the Adam's apple?

  1. Cricoid cartilage

  2. Corniculate cartilages

  3. Thyroid cartilage

  4. Cuneiform cartilages

  5. Arytenoid cartilages
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The thyroid cartilage is the largest of the laryngeal cartilages. It is formed by a right and a left lamina that are separated posteriorly. This forms the Adam's apple. It is usually larger in males than in females. The thyrohyoid membrane is a ligament associated with the thyroid cartilage that connects the thyroid cartilage with the hyoid bone.

Multiple choice

Match the columns:

 
Frog Characteristic
1. Bornean flat-headed frog a. Oxygen deficient water
2. Lake Titicaca frog b. Viviparous
3. Pacific tree frog c. No lungs
4. Nimbaphrynoides d. Onomatopoeic "ribbit"
  1. 1. Bornean flat-headed frog b. Viviparous
    2. Lake Titicaca frog c. No lungs
    3. Pacific tree frog d. Onomatopoeic "ribbit"
    4. Nimbaphrynoides a. Oxygen deficient water
  2. 1. Bornean flat-headed frog c. No lungs
    2. Lake Titicaca frog a. Oxygen deficient water
    3. Pacific tree frog d. Onomatopoeic "ribbit"
    4. Nimbaphrynoides b. Viviparous
  3. 1. Bornean flat-headed frog b. Viviparous
    2. Lake Titicaca frog d. Onomatopoeic "ribbit"
    3. Pacific tree frog a. Oxygen deficient water
    4. Nimbaphrynoides c. No lungs
  4. 1. Bornean flat-headed frog a. Oxygen deficient water
    2. Lake Titicaca frog c. No lungs
    3. Pacific tree frog b. Viviparous
    4. Nimbaphrynoides d. Onomatopoeic "ribbit"
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct match.  The fully aquatic Bornean flat-headed frog is the first frog known to lack lungs entirely. The Lake Titicaca frog has adapted to survive in oxygen deficient water. The Pacific tree frog (Pseudacris regilla) produces the onomatopoeic "ribbit" often heard in films. Members of the West African genus Nimbaphrynoides are unique among frogs in that they are viviparous.

Multiple choice

What is a cocoon made up of?

  1. Fats

  2. Carbohydrates

  3. Proteins

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

Caterpillar in its next stage, called pupa, secretes protein fibres which harden on exposure to air and become silk fibres, which is soon fully formed and the covering is known as cocoon.