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

Which one of the following is a Tissue?

  1. Liver

  2. Skin

  3. Heart

  4. Blood
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Blood is classified as a connective tissue in biological terms because it consists of cells suspended in a liquid matrix (plasma). Liver, skin, and heart are organs.

Multiple choice

Where is the sinoauricular node situated?

  1. Base of the right auricle

  2. Wall of the right auricle

  3. Between the left auricle and left ventricle

  4. Between the right auricle and the right ventricle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The specialised tissue called SA is present close to the entrance of superior vena cava in the right auricle.

Multiple choice

Where is the pericardial cavity present?

  1. Between fibrous pericardium and serous pericardium

  2. Between parietal and visceral layers

  3. Between two lungs

  4. Between visceral pericardium and endocardium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Between the parietal and visceral layers of serous pericardium, a narrow space is present which is called the pericardial cavity.

Multiple choice

In which kind of circulatory system are the organs bathed in blood for transportation to take place?

  1. Closed blood vascular circulatory system

  2. Open blood vascular circulatory system

  3. Water vascular circulatory system

  4. Intracellular circulation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In open blood vascular system, the blood vessels do not divide into capillaries and open in a wide space called sinuses in the body cavity. The blood fills the cavity and bathes the organs.

Multiple choice

Which of the following best defines metanephridia?

  1. It opens at both the ends

  2. These are larger in size

  3. These open directly to the outside through nephridiopore

  4. It lacks a nephridiopore

  5. Here, nephridia and coelom ducts remain separate
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

At one end, it opens through nephridiopore and on the other end it opens by nephrostome.

Multiple choice

Which organ does the work of thinking?

  1. Brain

  2. Kidney

  3. Heart

  4. Stomach
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The brain is the central organ of the nervous system and is responsible for cognitive functions, including thinking, memory, and decision-making.

Multiple choice

The end of diestrus period is due to

  1. recruitment of the ovulatory follicular wave

  2. decrease in estradiol negative feedback

  3. regression of the corpus luteum

  4. increase in estradiol levels coming from preovulatory follicle

  5. increase in progesterone level
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Regression results in loss of progesterone support.

Multiple choice

Which one of the following is called a horned toad?

  1. Alytes

  2. Rhacophorus

  3. Phrynosoma

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

Phrynosoma is the genus commonly known as horned toads or horned lizards due to their flattened, toad-like bodies and prominent head spines. The other options refer to various frog genera.

Multiple choice

The correct sequence of various sub layers in the epidermis of vertebrates integument starting from outside is

  1. stratum germinativum, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

  2. stratum germinativum, stratum corneum, stratum granulosum, stratum lucidum

  3. cuticle, endodermis, dermis, hypodermis

  4. stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum germinativum
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The epidermis of mammalian skin is organized from the surface inward as: stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum germinativum (basale).