Tag: diversity in living things and their classification

Quizzes (15) Questions (18)

Questions Related to diversity in living things and their classification

Multiple choice biology diversity in living things and their classification introduction to plant organs and germination seed to plants germination of seeds

Who of the following is associated with the description of life-forms in plants communities?

  1. Tansley

  2. Shelford

  3. Slobodkin

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

C. Raunkiaer is a Danish botanist famous for proposing a system of plant life-forms based on the position of the perennating buds relative to the soil surface, which is widely used in plant ecology and community description.

Multiple choice biology diversity in living things and their classification introduction to plant organs and germination seed to plants germination of seeds

Consider the following plants.
a. Curcuma longa
b. Ferula asafoetida
c. Myristica fragrans
d. Smilax aristolochiaefolia
From which of the plants are underground parts used for obtaining spices or products of commercial value?

  1. $1$ and $2$
  2. $3$ and $4$
  3. $1, 2$ and $4$
  4. $1, 2, 3$ and $4$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Curcuma longa (turmeric) and Ferula asafoetida (asafoetida) both utilize underground parts (rhizomes and roots/resins) for commercial value. Myristica fragrans (nutmeg) uses seeds/arils, and Smilax uses roots, but the question asks for specific commercial spices.

Multiple choice biology diversity in living things and their classification oviparous and viviparous number and shape of cells unicellular and multicellular organisms

................... possess notochord, ............... do not possess notochord.

  1. Vertebrates, invertebrates

  2. Invertebrates, vertebrates

  3. Notochords, chordates

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

The animals who posses a proper notochord are known as vertebrates whereas the organisms who do not have a proper notochord are known as invertebrates.

Multiple choice biology diversity in living things and their classification oviparous and viviparous number and shape of cells unicellular and multicellular organisms

.............. are those animals which have no backbone.

  1. Invertebrates

  2. Vertebrates

  3. Mammals

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

The vertebral column is a supportive structure derived from the notochord. It is more commonly called the backbone or the spine. Animals that do not possess or develop a vertebral column or backbone are commonly called invertebrates. They include crabs, snails, lobsters, octopuses, sea urchins, worms, etc.

So, the correct answer is 'Invertebrates'.

Multiple choice biology diversity in living things and their classification oviparous and viviparous number and shape of cells unicellular and multicellular organisms

Human beings are invertebrate.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vertebrates are the animals that possess a dorsal hollow nerve cord, pharyngeal gill slits, and a notochord at some stage of their lives. Human beings are mammals that possess all three of these characteristics and are hence vertebrates.

So, the correct answer is 'False'.

Multiple choice biology diversity in living things and their classification oviparous and viviparous number and shape of cells unicellular and multicellular organisms

Give the difference between vertebrates and invertebrates.

  1. Invertebrates do not have notochord vertebrates have notochord.

  2. The heart of invertebrates is present on dorsal side, while heart of vertebrate is present on ventral side.

  3. Invertebrates are less evolved animals where as chordata are highly evolved animals.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Invertebrates do not have a notochord, their heart is present on the dorsal side. They are less evolved animals, 
  • whereas vertebrates have notochords, their heart is on the ventral side and they are highly evolved animals.
Multiple choice biology diversity in living things and their classification oviparous and viviparous number and shape of cells unicellular and multicellular organisms

Vertebrates do not posses a notochordat any stage.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vertebrates are animals that possess a notochord, a dorsal hollow nerve cord and pharyngeal gill slits at some stage of their lives. They might possess these characteristics during the initial stages of their lives and lose them later on or they might develop these features later in their lives.

So, the correct answer  is 'False'.

Multiple choice biology diversity in living things and their classification oviparous and viviparous number and shape of cells unicellular and multicellular organisms

In non chordates, blood flow is _________ is ventral vessel and __________ in dorsal vessel.

  1. Backward, backward

  2. Backward, forward

  3. Forward, backward

  4. Forward, forward
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In most non-chordates (like earthworms), the blood flow in the ventral vessel is directed forward (anteriorly) and in the dorsal vessel, it is directed backward (posteriorly).