QQuestion
The two reflex actions, namely sneezing and coughing help in avoiding danger – justify the statement.
Exam-ready answer • 02 Mark
✓Answer
Sneezing and coughing are reflex actions that clear dust, germs, and other harmful particles from the respiratory tract, protecting the body from infection or injury.
Related Questions
More WBBSE Moderate level questions
Explain the following two terms: Ganglia and Synapse.
Write one function of each of the following five parts of the human eyeball: [1 × 5 = 5] (a) Cornea (b) Lens (c) Choroid (d) Vitreous humour (e) Retina OR Mention three changes occurring during the Anaphase stage of mitosis in an animal cell. Write the names of any two structural parts of the eukaryotic chromosome. [ 3 + 2 = 5]
What is the relation between the lens and the accommodation of the eye?
Match the words in column-A with the most appropriate words in column B and re-write the correct pair mentioning the serial no. of both columns COLUMN - A COLUMN - B 1. Meninges (a) Decrease in the number of digits in the legs 2. Sexual reproduction (b) Submergence of islands 3. Roller tongue (c) Centromere 4. Evolution of the horse (d) Telomere 5. Environmental problem of Sundarban (e) Protects brain and spinal cord from mechanical injury 6. Attaches chromosome with spindle fibre (f) Controlled by autosome (g) Occurs through the production of gametes and their union
Which reflex actions does a spectator execute while watching a high voltage game on television?
Compare between Myopia and Hyperopia on the following two features: (a) Cause (b) Symptom
Write two differences between axon and dendron.
How does a person perform the process of visual accommodation while walking on road?
Establish the relationship between neuron, nerve fiber and nerve
Which of the following are the refractive media of the eye? (a) Cornea, aqueous humour, lens, vitreous humour (b) Retina, aqueous humour, lens, vitreous humour (c) Cornea, retina, lens, iris (d) Aqueous humour, iris, vitreous humour, cornea
Write one function each of the following five parts of a neuron: [1×5=5] (a) Dendron (b) Axon (c) Myelin Sheath (d) Schwann Cell (e) Node of Ranvier Or Write one function each of the following five parts of an eukaryotic chromosome: [1×5=5] (a) Chromatid (b) Centromere (c) Nucleolar Organizer (d) Satellite (e) Telomere
Draw a scientific diagram of neuron and label the following parts: [3+2=5] (a) Dendron (b) Myelin Sheath (c) Schwann Cell (d) Node of Ranvier OR Draw a scientific diagram of eukaryotic chromosome and label the following parts: [3+2=5] (a) Centromere (b) Satellite (c) Nucleolar Organizer (d) Telomere
Small steps build strong concepts.