Moderate
819 likes
Question
The two reflex actions, namely sneezing and coughing help in avoiding danger – justify the statement.
WBBSE
Class X
Life Science
01 (d) Nervous System
2
2023
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
1/12
Moderate
567
Q.
Which reflex actions does a spectator execute while watching a high voltage game on television?
A.
A spectator watching a high voltage game may exhibit reflex actions such...
View Question
Moderate
817
Q.
Compare between Myopia and Hyperopia on the following two features: (a) Cause (b) Symptom
A.
Feature Myopia (Nearsightedness) Hyperopia (Farsightedness) Cause Eye ball is too long; light...
View Question
Easy
915
Q.
Write the names of two structural parts of axon.
A.
Two parts are: Axon hillock Myelin sheath Explanation: The axon hillock is...
View Question
Moderate
586
Q.
Which of the following are the refractive media of the eye? (a) Cornea, aqueous humour,...
A.
(a) Cornea, aqueous humour, lens, vitreous humour Explanation: The refractive media of...
View Question
Moderate
667
Q.
Write one function each of the following five parts of a neuron
A.
Part of Neuron Function Dendron Receives signals from other neurons Axon Conducts...
View Question
Moderate
695
Q.
Draw a scientific diagram of neuron and label the following parts: [3+2=5]
A.
Label Diagram of Neuron OR Label diagram of eukaryotic chromosome
View Question
Moderate
935
Q.
‘Scarcity of food and poaching are two main reasons behind the endangeredness of a mammal...
A.
Scarcity of food limits the survival and reproduction of mammals, weakening their...
View Question
Moderate
847
Q.
Explain the causes of endangeredness of Polar Bear and Gangetic Dolphin.
A.
The Polar Bear is endangered mainly due to global warming causing melting...
View Question
Moderate
596
Q.
What environmental problems can originate if the concentration of different greenhouse gases polluting air increases...
A.
An increase in greenhouse gases causes global warming, leading to climate change,...
View Question
Moderate
861
Q.
Prepare a list of reactants used and products in the experiment of Miller and Urey...
A.
Reactants Products Methane (CH4) Organic compounds Ammonia (NH3) Amino acids Hydrogen (H2)...
View Question
Moderate
570
Q.
How does a Rohu fish float and sink in water?
A.
A Rohu fish floats and sinks in water by regulating the volume...
View Question
Moderate
545
Q.
What types of struggle for existence can be found among the animals of a forest...
A.
The types of struggle for existence among forest animals over eating meat...
View Question