NEET
The Father of Zoology is- a)John Ray
- b)Buffon
- c)Carlous Linnaeus
- d)Aristotle
Correct answer is option 'D'. Can you explain this answer?
The Father of Zoology is
a)
John Ray
b)
Buffon
c)
Carlous Linnaeus
d)
Aristotle
Rutuja Chavhan answered • 2 hours agoFather of zoology and father of biology is Aristotle
Sriharshini Annala Annal asked • 23 minutes agoA metallic square loop ABCD is moving in its own plane with velocity v in a uniform magnetic field perpendicular to its plane as shown in the figure. An electric field is induced 
- a)in AD, but not in BC
- b)in BC, but not in AD
- c)neither in AD nor in BC
- d) in both AD and BC
Correct answer is option 'D'. Can you explain this answer?
A metallic square loop ABCD is moving in its own plane
with velocity v in a uniform magnetic field perpendicular
to its plane as shown in the figure. An electric field
is induced
a)
in AD, but not in BC
b)
in BC, but not in AD
c)
neither in AD nor in BC
d)
in both AD and BC
Types of system?
Raiyan Zaib answered • 3 hours agoFour specific types of engineered system context are generally recognized in systems engineering : product system , service system , enterprise system
Pick the odd one out.- a)Herbarium
- b)Botanical Garden
- c)Zoological Park
- d)Flora
Correct answer is option 'C'. Can you explain this answer?
Pick the odd one out.
a)
Herbarium
b)
Botanical Garden
c)
Zoological Park
d)
Flora
shinjini chatterjee answered • 4 hours agoBecause a,b,d is all about botany but c is zoological garden which is all about zoology
Four particals each having q charge are placed at the vertics of a square of side a. The value of the electric potential at the mid points of the one side will be?
Noushaba_Mirza answered • 4 hours agoIn general, electric potential ( V ) due to a point-charge Q at a distance r is given as
V=14πϵoQr
Assuming all four electric charges have same nature.
Therefore, the total electric potential (i.e. a scalar quantity) due to four equal point-charges each Q at the center of square of side A is obtained by setting r=A/2–√ in above formula
=4×14πϵ... more
V=14πϵoQr
Assuming all four electric charges have same nature.
Therefore, the total electric potential (i.e. a scalar quantity) due to four equal point-charges each Q at the center of square of side A is obtained by setting r=A/2–√ in above formula
=4×14πϵ... more
Needed a Video for menstrual cycle? Related: Menstrual Cycle?
Needed a Video for menstrual cycle?
Related: Menstrual Cycle
Noushaba_Mirza answered • 4 hours agoThe menstrual cycle is complex and controlled by many different glands and the hormones that these glands produce. The four phases of the menstrual cycle are menstruation, the follicular phase, ovulation and the luteal phase. Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS).
what is difference between PRI.art and secondary biological sewage treatments?
Noushaba_Mirza answered • 4 hours agoPrimary sewage treatment is a physical process that removes large impurities while secondary sewage treatment is a biological process that removes organic matter of sewage through the action of microbes.
First sound of heart beat is lower frequency and longer duration. If develops during- a)Opening of bicuspid and Tricuspid valve
- b)Closing of bicuspid and Tricuspid valve
- c)Opening of semi lunar valves
- d)Closing of semi luarn valves
Correct answer is option 'B'. Can you explain this answer?
First sound of heart beat is lower frequency and longer duration. If develops during
a)
Opening of bicuspid and Tricuspid valve
b)
Closing of bicuspid and Tricuspid valve
c)
Opening of semi lunar valves
d)
Closing of semi luarn valves
Asfiya answered • 4 hours agoOption-B :The first heart sound is produced due to closure of tricuspid and bicuspid valves .
the second sound occurs when pulmonary and aortic semilunar valves close.
the second sound occurs when pulmonary and aortic semilunar valves close.
What is difference between standing crop and standing state?
Asfiya answered • 5 hours agoStanding state is amount of inorganic nutrients found in an ecosystem.It represents part of non-living matter.
Standing crop is certain mass of living material at a particular time. it is a measure of biomass of living organisms.
[refer class XlI biology NCERT chapter - Ecosystem ]
Aldosterone is secreted by the- a)testes
- b)Nephron
- c)Adrenal cortex
- d)Posterior pituitary
Correct answer is option 'C'. Can you explain this answer?
a)
testes
b)
Nephron
c)
Adrenal cortex
d)
Posterior pituitary
Asfiya answered • 5 hours agoAldosterone is the main mineralocorticoid steroid hormone produced by the zona glomerulosa of the adrenal cortex in the adrenal gland.
It balances sodium and potassium levels in blood.
So, option-C is the correct answer.
It balances sodium and potassium levels in blood.
So, option-C is the correct answer.
India is divided into 10 biogeographical regions. Varying physical conditions and species grouping India has rich species diversity. Tropics are a rich centre of biodiversity. Warm temperature, high humidity in tropical areas provide favourable conditions throughout the year. Rich diversity is important for stability, productivity for ecosystems.Q. Which of the following taxon shows maximum species diversity ?- a)Fishes
- b)Beetles
- c)Orchids
- d)Ants
Correct answer is option 'B'. Can you explain this answer?
India is divided into 10 biogeographical regions. Varying physical conditions and species grouping India has rich species diversity. Tropics are a rich centre of biodiversity. Warm temperature, high humidity in tropical areas provide favourable conditions throughout the year. Rich diversity is important for stability, productivity for ecosystems.
Q. Which of the following taxon shows maximum species diversity ?
a)
Fishes
b)
Beetles
c)
Orchids
d)
Ants
Shiksha Academy answered • 6 hours agoBeatles show maximum diversity in species as they represent the largest order of insects.
Read the following text and answer the following question on the basis of the same:Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.Assertion : Pollution reduces species biodiversity.Reason : Spillover of oil in the sea causes the death of several marine animals.- a)Both assertion and reason are true and reason is the correct explanation of assertion.
- b)Both assertion and reason are true but reason is not the correct explanation of assertion.
- c)Assertion is true but reason is false.
- d)Both assertion and reason are false.
Correct answer is option 'C'. Can you explain this answer?
Read the following text and answer the following question on the basis of the same:
Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.
Assertion : Pollution reduces species biodiversity.
Reason : Spillover of oil in the sea causes the death of several marine animals.
a)
Both assertion and reason are true and reason is the correct explanation of assertion.
b)
Both assertion and reason are true but reason is not the correct explanation of assertion.
c)
Assertion is true but reason is false.
d)
Both assertion and reason are false.
Mohit Rajpoot answered • 6 hours agoSpillover of oil in sea causes death of several marine animals and this pollution reduces species biodiversity.
Read the following text and answer the following question on the basis of the same:Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.Q. Factors which make species susceptible to extinction are:- a)Small population size
- b)Higher status of trophic level
- c)Inability to switch over to alternate food
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
Read the following text and answer the following question on the basis of the same:
Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.
Q. Factors which make species susceptible to extinction are:
a)
Small population size
b)
Higher status of trophic level
c)
Inability to switch over to alternate food
d)
All of the above
Sushil Kumar answered • 6 hours agoPopulation traits which make species susceptible to extinction are: small population, higher status of trophic level and inability to switch over to alternate foods.
Read the following text and answer the following question on the basis of the same:Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.Q. ___________is the first major cause of species extinction.- a)Coextinction
- b)Over exploitation
- c)Habitat destruction
- d)Alien species invasion
Correct answer is option 'C'. Can you explain this answer?
Read the following text and answer the following question on the basis of the same:
Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.
Q. ___________is the first major cause of species extinction.
a)
Coextinction
b)
Over exploitation
c)
Habitat destruction
d)
Alien species invasion
Stepway Academy answered • 6 hours agoHabitat destruction is an important cause of known extinctions. As deforestation proceeds in tropical forests, this promises to become THE cause of mass extinctions caused by human activity.
All species have specific food and habitat needs. The more specific these needs and localized the habitat, the greater the vulnerability of species to loss of habitat to agricultural land, livestock, roads and cities. In the future, the only species that survive are likely to be those whose habitats are highly protected, or whose habitat corresponds to the degraded state associated with human activity (human commensals).
Read the following text and answer the following question on the basis of the same:Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.Q. The species that have become extinct due to over exploitation is/are :- a)Stellar sea cow
- b)Yucca moth
- c)Blatta orientalis
- d)Nile Perch
Correct answer is option 'A'. Can you explain this answer?
Read the following text and answer the following question on the basis of the same:
Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.
Q. The species that have become extinct due to over exploitation is/are :
a)
Stellar sea cow
b)
Yucca moth
c)
Blatta orientalis
d)
Nile Perch
Ias Masters answered • 6 hours agoSteller's sea cow has become extinct in the last 500 years due to overexploitation by humans.
India is divided into 10 biogeographical regions. Varying physical conditions and species grouping India has rich species diversity. Tropics are a rich centre of biodiversity. Warm temperature, high humidity in tropical areas provide favourable conditions throughout the year. Rich diversity is important for stability, productivity for ecosystems.Q. What is the approximate ratio of animals and plant species in our country ?- a)3 : 1
- b)2 : 1
- c)1 : 3
- d)1 : 2
Correct answer is option 'B'. Can you explain this answer?
India is divided into 10 biogeographical regions. Varying physical conditions and species grouping India has rich species diversity. Tropics are a rich centre of biodiversity. Warm temperature, high humidity in tropical areas provide favourable conditions throughout the year. Rich diversity is important for stability, productivity for ecosystems.
Q. What is the approximate ratio of animals and plant species in our country ?
a)
3 : 1
b)
2 : 1
c)
1 : 3
d)
1 : 2
Ciel Knowledge answered • 6 hours agoRatio of plants and species in India is 2 : 1.
Read the following text and answer the following question on the basis of the same:Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.Q. Identify a cause of biodiversity loss that is not included in the evil quartet?- a)Coextinction
- b)Pollution
- c)Alien species invasion
- d)Habitat loss and fragmentation
Correct answer is option 'B'. Can you explain this answer?
Read the following text and answer the following question on the basis of the same:
Excessive exploitation of species, whether a plant or animal reduces the size of its population, so it becomes vulnerable to extinction. Such as Dodo and passenger pigeons have become extinct due to over exploitation by humans. Thus, the world is facing accelerated rates of species extinctions, largely due to human interference.
Q. Identify a cause of biodiversity loss that is not included in the evil quartet?
a)
Coextinction
b)
Pollution
c)
Alien species invasion
d)
Habitat loss and fragmentation
Universal Academy answered • 6 hours agoEvil quartet, i.e., four major causes of biodiversity loss are habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction.
India is divided into 10 biogeographical regions. Varying physical conditions and species grouping India has rich species diversity. Tropics are a rich centre of biodiversity. Warm temperature, high humidity in tropical areas provide favourable conditions throughout the year. Rich diversity is important for stability, productivity for ecosystems.Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion (A) : Tropics have more biodiversity.Reason (R) : Climate of the tropical region is more seasonal.- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
Correct answer is option 'C'. Can you explain this answer?
India is divided into 10 biogeographical regions. Varying physical conditions and species grouping India has rich species diversity. Tropics are a rich centre of biodiversity. Warm temperature, high humidity in tropical areas provide favourable conditions throughout the year. Rich diversity is important for stability, productivity for ecosystems.
Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :
Assertion (A) : Tropics have more biodiversity.
Reason (R) : Climate of the tropical region is more seasonal.
a)
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
b)
Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
c)
Assertion (A) is true but reason (R) is false.
d)
Assertion (A) is false but reason (R) is true.
New Words answered • 6 hours agoTropics have more biodiversity due to warm temperature and high humidity.
The destruction of the cilia lining the respiratory tract would result in- a)decreased breathing rate
- b)decreased mucus production
- c)increased debris in the airways
- d)increased temperature in the lungs
Correct answer is option 'C'. Can you explain this answer?
The destruction of the cilia lining the respiratory tract would result in
a)
decreased breathing rate
b)
decreased mucus production
c)
increased debris in the airways
d)
increased temperature in the lungs
Asfiya answered • 9 hours agoCilia move microbes and debris up and out of respiratory tract .
If cilia gets destructed undeniably it's functions are also affected resulting Increase of debris in airways.
If cilia gets destructed undeniably it's functions are also affected resulting Increase of debris in airways.
Eustachian tube is supported by :-- a)Elastic cartilage
- b)White fibros cartilage
- c)Calcified cartilage
- d)Hyaline cartilage
Correct answer is option 'A'. Can you explain this answer?
Eustachian tube is supported by :-
a)
Elastic cartilage
b)
White fibros cartilage
c)
Calcified cartilage
d)
Hyaline cartilage
Asfiya answered • 11 hours agoEustachian tube also called auditory tube which is supported by elastic cartilage giving it shape , providing shape for the lateral region of the external auditory meatus and medial part of the auditory canal.
The pH values of rainwater collected from two cities A and B were found to be 6 and 5 respectively.The water of which city is more acidic?
Asfiya answered • 11 hours agoThe rain water collected from city B is more acidic because acidic strength increases as the value of PH decreases.
Contrast to this basic strength increases as the value of PH increases.
Wasmiya asked • 4 hours agoA: Blood group phenotype is controlled by the presence or absence of antigens present on the surface coating of RBC.R: These antigens are of three types and found in the oligosaccharides rich head regions of a glycophorin.- a)If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.
- b)If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.
- c)If the Assertion is a true statement, but Reason is false.
- d)If both Assertion and Reason are false statements.
Correct answer is option 'B'. Can you explain this answer?
A: Blood group phenotype is controlled by the presence or absence of antigens present on the surface coating of RBC.
R: These antigens are of three types and found in the oligosaccharides rich head regions of a glycophorin.
a)
If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.
b)
If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.
c)
If the Assertion is a true statement, but Reason is false.
d)
If both Assertion and Reason are false statements.
Qurban Ali asked • 4 hours agoA fatty acid has 12 corbon would produce.NADH. A.10 B.12 C.14 D.18 E.6?
production from 5-
reduction to that of 
to that of
Girija Appu asked • 5 hours agoWhich one of the following informations can be obtained on the basis of Le Chatelier principle ?- a)Dissociation canstant of a weak acid
- b)Entropy change in a reaction
- c)Equilibrium constant of a chemical reaction
- d)Shift in equilibrium position on changing value of a constraint
Correct answer is option 'D'. Can you explain this answer?
a)
Dissociation canstant of a weak acid
b)
Entropy change in a reaction
c)
Equilibrium constant of a chemical reaction
d)
Shift in equilibrium position on changing value of a constraint
Nishant Sharma asked • 7 hours agoDirection : Read the following question and choose
A. If both assertion and reason are true and reason is the correct explantion of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If assertion is false but reason is true
Assertion: When base region has larger width, the collector current increases
Reason: Electron hole combination in base results in increase of base current
- a)A
- b)B
- c)C
- d)D
Correct answer is option 'D'. Can you explain this answer?
A. If both assertion and reason are true and reason is the correct explantion of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If assertion is false but reason is true
Assertion: When base region has larger width, the collector current increases
Reason: Electron hole combination in base results in increase of base current
a)
A
b)
B
c)
C
d)
D
Vishnu Teja asked • 8 hours agoA micronutrient is the one which is- a)More important than any major element
- b)Less important than major elements
- c)Needed in small quantity but is as important as a major element
- d)Found in small quantities in the soil
Correct answer is option 'C'. Can you explain this answer?
a)
More important than any major element
b)
Less important than major elements
c)
Needed in small quantity but is as important as a major element
d)
Found in small quantities in the soil
Arun Tiwari asked • 8 hours agoEndosperm type in which first division of primary endosperm nucleus and few subsequent division are not accompanied by wall formation is called?- a)Cellular type
- b)Micropylar type
- c)Free nuclear type
- d)Helobial type
Correct answer is option 'C'. Can you explain this answer?
Endosperm type in which first division of primary endosperm nucleus and few subsequent division are not accompanied by wall formation is called?
a)
Cellular type
b)
Micropylar type
c)
Free nuclear type
d)
Helobial type
Vijith Kumar asked • 10 hours agoA mass m is suspended from a string of length l and force constant K. The frequency of vibration of the mass is f₁. The spring is cut into two equal Parts and the same mass is suspended from one of the parts. The new frequency of vibration of mass is f₂. Which of the following relations between the frequencies is correct- a)f₁ = √2 f₂
- b)f₁=2f₂
- c)f₁ = 2f₂
- d)f₂ = √2 f₁
Correct answer is option 'D'. Can you explain this answer?
A mass m is suspended from a string of length l and force constant K. The frequency of vibration of the mass is f₁. The spring is cut into two equal Parts and the same mass is suspended from one of the parts. The new frequency of vibration of mass is f₂. Which of the following relations between the frequencies is correct
a)
f₁ = √2 f₂
b)
f₁=2f₂
c)
f₁ = 2f₂
d)
f₂ = √2 f₁
Abhinav Agarwal asked • 10 hours agoA movie projector projects an image of length 3.5 m of a 35 mm. movie film on a screen. Neglecting absorption of light by the film and the air, the ratio of the illumination on the screen is- a)100 : 1
- b)
- c)1 : 100
- d)
Correct answer is option 'D'. Can you explain this answer?
a)
100 : 1
b)
c)
1 : 100
d)
Rucha Kulkarni asked • 10 hours agoIn the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Hollow prism forms no spectra as a solid equilateral prism of glass.
Reason(R): Neglecting the thickness of the hollow glass surface, the media is same. So dispersion is not to take place.- a)Both Assertion and Reason are true and Reason is the correct explanation of assertion.
- b)Both Assertion and Reason are true and Reason is not the correct explanation of assertion
- c)Assertion is true but Reason is false.
- d)Assertion is false but Reason is true.
Correct answer is option 'A'. Can you explain this answer?
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the Statements carefully and mark the correct answer-
Assertion(A): Hollow prism forms no spectra as a solid equilateral prism of glass.
Reason(R): Neglecting the thickness of the hollow glass surface, the media is same. So dispersion is not to take place.
Assertion(A): Hollow prism forms no spectra as a solid equilateral prism of glass.
Reason(R): Neglecting the thickness of the hollow glass surface, the media is same. So dispersion is not to take place.
a)
Both Assertion and Reason are true and Reason is the correct explanation of assertion.
b)
Both Assertion and Reason are true and Reason is not the correct explanation of assertion
c)
Assertion is true but Reason is false.
d)
Assertion is false but Reason is true.
Kusuma Kusu asked • 11 hours agoFill in the blanks with appropriate pair of words.It is an error to regard the imagination as a mainly ...... force; if it destroys and alters, it also ...... hitherto isolated beliefs, insights, and mental habits into strongly unified systems.- a)visionary; conjures
- b)beneficial; converts
- c)revolutionary; fuses
- d)negative; shunts
Correct answer is option 'C'. Can you explain this answer?
Fill in the blanks with appropriate pair of words.
It is an error to regard the imagination as a mainly ...... force; if it destroys and alters, it also ...... hitherto isolated beliefs, insights, and mental habits into strongly unified systems.
a)
visionary; conjures
b)
beneficial; converts
c)
revolutionary; fuses
d)
negative; shunts
Manu Laxmibai asked • 11 hours agoAn ideal gas, obeying kinetic theory of gases, can be liquefied if- a)It cannot be liquefied at any P and T
- b)Its pressure is more than P at a temperature less than T
- c)Its temperature is more than critical temperature T
- d)Its pressure is more than critical pressure P
Correct answer is option 'A'. Can you explain this answer?
An ideal gas, obeying kinetic theory of gases, can be liquefied if
a)
It cannot be liquefied at any P and T
b)
Its pressure is more than P at a temperature less than T
c)
Its temperature is more than critical temperature T
d)
Its pressure is more than critical pressure P
El Dorado asked • 11 hours agoConversion of glucose-6-phosphate to fructose-1, 6-bisphosphate requires- a)phosphoglucomutase and phosphorylase
- b)phosphoglucomutase and aldolase
- c)phosphoglucose isomerase & phosphofructokinase
- d)phosphoglucomutase and phosphofructokinase
Correct answer is option 'C'. Can you explain this answer?
Conversion of glucose-6-phosphate to fructose-1,
6-bisphosphate requires
a)
phosphoglucomutase and phosphorylase
b)
phosphoglucomutase and aldolase
c)
phosphoglucose isomerase & phosphofructokinase
d)
phosphoglucomutase and phosphofructokinase
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