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Biology QUESTION #7239

Arises from a spore produced by the gametophyte
Manufactures food for itself as well as for the gametophyte
Is partially parasitic on the gametophyte✔️
Produces gametes that give rise to the gametophyte

Correct Answer Logic:

The moss sporophyte is partially parasitic on the gametophyte. It lacks true roots and draws water and nutrients from the gametophyte via a foot. It does have chlorophyll and performs some photosynthesis but cannot fully sustain itself — hence partially parasitic (semi-dependent).

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Accounting & Finance QUESTION #6171

Question 5262

If an investor receives $1,000 at the end of each year for 10 years, this is classified as a(n):

Annuity Due
Perpetuity
Ordinary Annuity✔️
Deferred Perpetuity

Correct Answer Logic:

Lesson 07 defines an Ordinary Annuity as a series of equal payments occurring at the end of each period.

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Education QUESTION #10906

Question 5263

The main responsibility of classroom management lies with the:

Principal
Teacher✔️
Manager
Supervisor

Correct Answer Logic:

The classroom teacher bears the primary responsibility for classroom management — establishing routines, maintaining discipline, creating a productive learning environment, handling behavioural issues, and managing time and resources within the classroom. The principal provides school-wide guidance, but the teacher is the immediate, in-room authority responsible for the daily management of their specific classroom. Effective classroom management is considered one of the most essential teaching competencies.

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English QUESTION #8535

Question 5264

The synonym of 'Nonchalant' is:

Excited
Natural
Dispassionate✔️
nervous

Correct Answer Logic:

Nonchalant means casually calm and unconcerned; dispassionate.

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Chemistry QUESTION #7114

Question 5265

When titrating a weak base against a strong acid, which indicator and end-point color change is the most appropriate?

Methyl orange; Yellow to pinkish red✔️
Phenolphthalein; Pink to colourless
Methyl orange; Colourless to pink
Phenolphthalein; Pinkish red to yellow

Correct Answer Logic:

For a titration between a weak base and a strong acid, the equivalence point lies in the acidic range ($pH < 7$). Methyl orange is a suitable indicator as its color change interval ($3.1$ to $4.4$) matches this range, changing from yellow in basic/neutral conditions to pinkish-red in acidic conditions.

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Math Physics Chemistry Biology QUESTION #11381

Question 5266

Which of the following is correct for the cell wall?

Semipermeable
Differentially permeable
Permeable✔️
Not permeable

Correct Answer Logic:

The plant cell wall is freely permeable — it allows water, ions, and small molecules to pass through freely without restriction. It provides structural support but does not act as a selective barrier. Selective permeability is a property of the plasma membrane within the cell wall, not of the cell wall itself.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3484

Question 5267

Which alkaloid is obtained from 'Atropa belladonna'?

Quinine
Atropine✔️
Morphine
Reserpine

Correct Answer Logic:

Atropine is a tropane alkaloid used as an antispasmodic and mydriatic.

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Psychology QUESTION #9918

Question 5268

Norms are influenced by:

The surrounding culture
The surrounding sub-culture
The context of the situation
All of the above✔️

Correct Answer Logic:

Social norms are shaped by all three levels: the broader cultural framework, subcultural influences (group-specific norms), and the immediate situational context (norms vary across settings). All three operate simultaneously.

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Nursing QUESTION #9241

Question 5269

A Head Nurse notes a patient's pulmonary artery wedge pressure (PAWP) is $22 \text{ mmHg}$. What does this MOST likely indicate in the context of a hypotensive ICU patient?

Hypovolemia — fluid resuscitation is needed
Pulmonary arterial hypertension
Left ventricular failure with pulmonary congestion✔️
Right ventricular failure — start inhaled nitric oxide

Correct Answer Logic:

Correct Answer: C — Left ventricular failure with pulmonary congestion

PAWP (Pulmonary Artery Wedge Pressure) Interpretation:

PAWP	Interpretation
$< 8 \text{ mmHg}$	Hypovolemia — aggressive fluid resuscitation
$8 - 12 \text{ mmHg}$	Normal
$12 - 18 \text{ mmHg}$	Mild-moderate elevation — monitor
$> 18 \text{ mmHg}$	LV failure / pulmonary congestion
$> 25 \text{ mmHg}$	Severe LV failure / cardiogenic pulmonary edema

PAWP (also called PCWP) reflects left atrial pressure and left ventricular end-diastolic pressure (preload). PAWP $= 22 \text{ mmHg}$ indicates fluid overload or LV failure. Hypotension with elevated PAWP = cardiogenic shock. Management: diuretics, inotropes (dobutamine), vasopressors.

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General Knowledge QUESTION #11503

Question 5270

Which action allows selecting multiple slides in a presentation?

Alt + Click each slide
Shift + Drag each slide
Shift + Click each slide✔️
Ctrl + Click each slide

Correct Answer Logic:

To select multiple contiguous slides in PowerPoint's Slide panel or Slide Sorter view, hold Shift + Click to select a range, or Ctrl + Click to select non-adjacent slides. Per the answer key, the stated answer is Shift + Click each slide.

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Biology QUESTION #7287

Question 5271

Ringworm in humans is caused by:

Viruses
Bacteria
Fungi✔️
Nematodes

Correct Answer Logic:

Ringworm (tinea) is a common superficial fungal infection (dermatophytosis) caused by fungi such as Trichophyton, Microsporum, and Epidermophyton. Despite the name, no worm is involved. It causes circular, scaly, itchy patches on the skin. It is treated with antifungal agents like clotrimazole or terbinafine.

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Biology Zoology Botany QUESTION #10836

Question 5272

Which step is the first in many DNA-based technologies such as PCR and Southern blotting?

Isolation
Denaturation✔️
Annealing
Elongation

Correct Answer Logic:

Denaturation is the first step in many DNA-based techniques. In PCR, the denaturation step (~94–95°C) separates the double-stranded DNA into single strands by breaking hydrogen bonds between base pairs. This makes the single-stranded template available for primer annealing. In Southern blotting, DNA is denatured before transfer. In DNA hybridisation experiments, denaturation allows probe binding. The order in PCR is: Denaturation → Annealing → Extension.

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Quantitative Reasoning QUESTION #8122

Question 5273

The argument about oxygen levels in Earth's early atmosphere contains two boldface portions. The first boldface statement is this explanation is inadequate, and the second is the amount of iron on Earth's surface was not sufficient to absorb anywhere near as much oxygen as was being produced. Which of the following best describes the role each plays in the argument?

The first is a claim made by the argument in support of a certain position; the second is that position.
The first is a judgment made by the argument about a certain explanation; the second is that explanation.
The first expresses the argument's dismissal of an objection to the position it seeks to establish; the second is that position.
The first sums up the argument's position with regard to a certain hypothesis; the second provides grounds for that position.✔️

Correct Answer Logic:

The first boldface sentence (this explanation is inadequate) is the argument's verdict or position on the iron-absorption hypothesis. The second boldface sentence provides the evidence/grounds that justify that verdict — iron levels were simply too low. This perfectly matches option D: [position on hypothesis] : [grounds supporting that position]. Option B is wrong because the second boldface is not the explanation being judged — it's the evidence against it.

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Maths QUESTION #7995

Question 5274

$3^{72/100}$ written as a fraction is:

3.72
37.2
0.372✔️
372

Correct Answer Logic:

$3^{72/100} = 3.72$ — wait, this is a notation question. $3\tfrac{72}{100} = 3 + 0.72 = 3.72$ as a decimal, or $\dfrac{372}{100} = 0.372$ when simplified... The answer key gives C (0.372). Note: $\dfrac{372}{100} = 3.72$ not 0.372. Answer key may contain a typo; the mixed number $3\tfrac{72}{100} = 3.72$.

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Maths QUESTION #2832

Question 5275

Evaluate: $999^2 - 998 \times 1000$

1✔️
2
3
4

Correct Answer Logic:

Using identity $a^2 - b \times c$: Let $a = 999$, $b=998$, $c=1000$. Note $998 \times 1000 = (999-1)(999+1) = 999^2 - 1$. So $999^2 - (999^2 - 1) = 1$.

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Physics and Math QUESTION #778

Question 5276

$\left(\dfrac{1 - \sqrt{3}i}{2}\right)^4 = ?$

$\dfrac{-1 + \sqrt{3}i}{2}$✔️
$\dfrac{-1 - \sqrt{3}i}{2}$
$\left(\dfrac{-1 + \sqrt{3}i}{2}\right)^2$
None

Correct Answer Logic:

$\dfrac{1-\sqrt{3}i}{2}$ is a complex cube root of unity $\omega^2$, so $(\omega^2)^4 = \omega^8 = \omega^2 \cdot \omega^6 = \omega^2 = \dfrac{-1+\sqrt{3}i}{2}$.

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English QUESTION #2781

Question 5277

What does the PHRASAL VERB 'BREAK DOWN' mean?

To demolish a building forcefully
To stop functioning / to lose emotional control✔️
To reduce the price of something
To separate from a group

Correct Answer Logic:

'Break down' is a phrasal verb with two main meanings: (1) a machine stops working, or (2) a person loses emotional control and cries. Example: 'The car broke down on the highway.'

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3132

Question 5278

The 'Cerebrospinal Fluid' (CSF) is found in which space?

Epidural space
Subdural space
Subarachnoid space✔️
Intracellular space

Correct Answer Logic:

CSF flows between the arachnoid and pia mater.

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Law QUESTION #9529

Question 5279

A decree for possession of land is passed in favour of A. A dies before execution. A's son S, who is a Hindu undivided family co-parcener, seeks execution. B the judgment-debtor argues S must obtain probate or letters of administration before being recognised as A's representative. Is B's contention correct?

No; S can only execute the decree if he obtains a succession certificate
Yes; S must first obtain probate
Yes; execution requires a court certificate of inheritance
No; in the absence of a specific requirement, S can apply to the executing Court to be recognised as the legal representative of A under Section 50 CPC; the executing Court has jurisdiction to determine who constitutes the legal representative without requiring formal probate in every case✔️

Correct Answer Logic:

Section 50 CPC allows the executing Court to permit execution against the legal representative of a deceased decree-holder. 'Legal representative' is defined broadly under Section 2(11) to include any person who in law represents the estate. The executing Court can determine the question of legal representation without insisting on formal probate in every case.

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Islamic Studies QUESTION #7931

Question 5280

The angels who keep daily account of out deeds are called:

Kiraman Katibeen✔️
Munkir Nakeer
Yajuj Majuj
Hazrat Izraeel

Correct Answer Logic:

Kiraman Katibin (Honorable Recorders) are the two angels assigned to every person to record their deeds. The angel on the right shoulder records good deeds (Hasanat), while the angel on the left records bad deeds (Sayyi'at). These records will be presented on the Day of Judgment when everyone will receive their book of deeds.

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Suggest a Question

PAWP	Interpretation
\(< 8 \text{ mmHg}\)	Hypovolemia — aggressive fluid resuscitation
\(8 - 12 \text{ mmHg}\)	Normal
\(12 - 18 \text{ mmHg}\)	Mild-moderate elevation — monitor
\(> 18 \text{ mmHg}\)	LV failure / pulmonary congestion
\(> 25 \text{ mmHg}\)	Severe LV failure / cardiogenic pulmonary edema