Tag: structure and functions of living organisms -ii

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Questions Related to structure and functions of living organisms -ii

Multiple choice biology the life cycle of animals how do animals reproduce? excretory, nervous and reproductive system structure and functions of living organisms -ii

India's indigenous pigs generally give birth to __________ young ones a time?

  1. 6-8

  2. 4-6

  3. 2-4

  4. 8-10
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Indigenous species are the ones that are found naturally in a particular habitat or they are native to that place.

The indigenous pigs give birth to around 4-6 pigs or young ones. They are known as litter.

So, the correct option is '4-6'

Multiple choice biology the life cycle of animals how do animals reproduce? excretory, nervous and reproductive system structure and functions of living organisms -ii

Introduction of foreign genes for improving genotype is

  1. Biotechnology

  2. Tissue culture

  3. Vernalisation

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

Genetic engineering is the process of manually adding new DNA to an organism. The goal is to add one or more new traits that are not already found in that organism. Gene manipulation is also sometimes called the genetic engineering. It is a general term for any method which manipulate with the genetic material. Gene manipulation includes gene splicing, use of recombinant DNA, forming of the monoclonal antibodies or PCR (polymerase chain reaction).

Therefore, the correct answer is option D.

Multiple choice biology the life cycle of animals how do animals reproduce? excretory, nervous and reproductive system structure and functions of living organisms -ii

Biotechnology is a (an) 

  1. Science to culture bacteria

  2. Application of biological organisms to study genetics

  3. Application of biological organisms and systems to manufacture industrial products useful to mankind

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Biotechnology is a broad discipline in which biological processes, organisms, cells or cellular components are exploited to develop new technologies. New tools and products developed by biotechnologists are useful in research, agriculture, industry and the clinic.
Therefore, the correct answer is option C.
Multiple choice biology the life cycle of animals how do animals reproduce? excretory, nervous and reproductive system structure and functions of living organisms -ii

Which of the following can show somatogenic reproduction?

  1. Paramecium

  2. Amoeba

  3. Hydra

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Asexual reproduction is also called somatogenic reproduction, in these new organisms are produced from the somatic part of the parent organism.

So, the correct option is 'All of these'.

Multiple choice biology structure and functions of living organisms -ii nervous system in animals structure of neuron structure and function of neuron role of receptors in the mouth types of teeth circulatory system and organs

The nervous system is formed of 

  1. Brain

  2. Spinal cord

  3. Nerves

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The nervous system is a collection of cells, tissues, and organs ( brain, spinal cord, nerves ) through which an organism receives information from its surroundings and then directs the organism to respond to the stimulus.

So, the correct answer is 'All of the above'.

Multiple choice biology structure and functions of living organisms -ii nervous system in animals structure of neuron structure and function of neuron role of receptors in the mouth types of teeth circulatory system and organs

The organ that helps us to recall and analyse is 

  1. Muscles

  2. Brain

  3. Spinal cord

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

The brain regulates an array of functions necessary for survival. The brain houses our mind and our memories. Most available evidence suggests that the functions of memory are carried out by the hippocampus and other related structures in the temporal lobe of the brain. The brain also helps in the analysis of various body functions.

So, the correct answer is 'Brain'.

Multiple choice evs structure and functions of living organisms -ii experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

Human dentition is described as

  1. Heterodont, diphyodont and thecodont

  2. Heterodont, monophyodont and thecodont

  3. Heterodont, diphyodont, thecodont and bundodont

  4. Heterodont, polyphyodont and pleurodont
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Human dentition can be describes as:

Heterodont: the teeth are morphologically different from each other.
Diphyodont: there are two sets of teeth that appear in the lifetime, the milk-teeth and the permanent teeth.
Thecodont: the teeth are firmly enclosed within the deep socket of the jaw bone.
Hence, the correct answer is 'Heterodont, diphyodont and thecodont'.

Multiple choice evs structure and functions of living organisms -ii experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

Nasal chamber is divided in tow parts by?

  1. Sphenoid bone

  2. Palatine bone

  3. Mesethemoid cartilage

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

The nasal cavity is divided into two lateral halves by the nasal septum, which is formed by the vomer, the perpendicular plate of the ethmoid bone, and the septal cartilage.

Multiple choice evs structure and functions of living organisms -ii experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

The teeth which help us in chewing and grinding the food we eat are?

  1. Canines

  2. Incisors

  3. Premolars

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

Molars are broad, flat teeth located at the back of the mouth, specially adapted for crushing, grinding, and chewing food into smaller pieces suitable for digestion.

Multiple choice evs structure and functions of living organisms -ii experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

Maximum number of teeth found in placental mammals is

  1. 32

  2. 54

  3. 44

  4. 22
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Placental mammals have a maximum of three incisors and one canine per quadrant and usually have no more than four premolars and three molars per quadrant. Following dental formula represents the number of tooth in placental mammals.
Placental mammals =  I 3/3 C 1/1 P 4/4 M 3/3 =44