Biology · Science General

Diversity in Living Organisms

3,323 Questions

The diversity in living organisms deals with the classification of life forms into various kingdoms and phyla. This topic covers specific traits of bacteria, animal body cavities, and structural adaptations for survival. These fundamentals are crucial for biology sections in medical entrance and state board exams.

Animal phyla characteristicsBacteria and flagellaBiological adaptationsKingdom Animalia classificationBody cavity typesExtinct organism subphylaJawless animals identification

Diversity in Living Organisms Questions

Multiple choice

Taxonomy of vertebrate divides fishes in to which two basic groups?

  1. Jawed and jawless

  2. Gilled and non-gilled

  3. Mammalian and non-mammalian

  4. Nematodes and non-nematodes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vertebrates are classified into two main groups based on the presence of jaws: Agnatha (jawless fish) and Gnathostomata (jawed vertebrates). Other options do not represent primary taxonomic divisions of fish.

Multiple choice

Directions: Fill in the blank.

When Australian cane toads are _______, they release a venom from glands on the back of their heads that has proven to have hallucinogenic effects on potential predators.

  1. retractable

  2. curious

  3. antagonized

  4. satiated

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

The context mentions that the cane toads release venom when they encounter potential predators or threats. Antagonized means provoked or stimulated, which triggers the defensive response of releasing venom.

Multiple choice

The means of respiration in the echinodermata is/are _________.

  1. gills

  2. papulae

  3. tuft-like gills

  4. tracheal gill
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Respiration in the echinodermata (starfish and sea urchins) is carried out using a very primitive version of gills called papulae. These thin protuberances on the surface of the body contain diverticula of the water vascular system.

Multiple choice

Which of the following is not an antibiotic?

  1. Penicillin

  2. Streptomycein

  3. Erythromycein

  4. Tetracycline

  5. Plasmodium
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option, as Plasmodium is a protozoa and not an antibiotic. It is commonly known as 'Malarial parasite'.

Multiple choice

What is a cyst?

  1. A protective coating over microorganisms

  2. Reproductive organs in fungi and bacteria

  3. Appendages in diatoms for locomotion

  4. A colony of bacteria
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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Multiple choice

Yeasts belong to which of the following kingdoms?

  1. Monera

  2. Protists

  3. Fungi

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

Yeasts belong to Kingdom Fungi.Yeast size can vary greatly depending on the species, typically measuring 3–4 µm in diameter, although some yeasts can reach over 40 µm.[4] Most yeasts reproduce asexually by mitosis, and many do so by an asymmetric division process called budding.

Multiple choice

Which of the following options is a characteristic feature of Arthropods?

  1. Jointed legs

  2. Pseudocoelomic body cavity

  3. Segmented body

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

Jointed legs is a characteristic feature of Arthropods.The arthropod body plan consists of segments, each with a pair of appendages. The rigid cuticle inhibits growth, so arthropods replace it periodically by moulting.