The question asks about the structure responsible for maintaining water balance in Amoeba. This process is known as osmoregulation. We need to identify the specific organelle that performs this function in a single-celled organism like Amoeba.
Correct Option: A) The contractile vacuole is a specialized organelle found in freshwater protozoa like Amoeba. Its primary function is osmoregulation, which involves collecting excess water that enters the cell by osmosis and expelling it to the outside, thereby preventing the cell from bursting.
The question asks for the location where India's first Green Hydrogen Microgrid Project was initiated in 2021. This is a factual question related to recent developments in renewable energy and infrastructure in India.
Correct Option: D) Andhra Pradesh
The first Green Hydrogen Microgrid Project in India was set up at NTPC Simhadri in Visakhapatnam, Andhra Pradesh. This project was a significant step towards decarbonizing India's energy sector and promoting green hydrogen as a future fuel.
The problem asks us to complete a letter series by identifying the repeating pattern. We need to count the total number of letters and blanks, then divide by potential pattern lengths to find a repeating sequence.
C) C R P P T S C P
When the letters 'C R P P T S C P' are inserted into the blanks, the series becomes:
P C T P R S P C T P R S P C T P R S P C T P R S
This clearly forms a repeating pattern of 'P C T P R S'.
The question asks about the number of times the Factories Act has been amended as of June 2022. To answer this, we need to recall the major amendments made to the Factories Act since its enactment.
Correct Option: D) 5
This problem involves substituting given symbol meanings into a mathematical expression and then evaluating the expression using the order of operations (BODMAS/PEMDAS).
Original equation: \(28 - 2 + 80 \times 5 \div 12 = ?\)
After substitution:
\[ 28 \times 2 - 80 \div 5 + 12 = ? \]Perform division first:
\[ 28 \times 2 - (80 \div 5) + 12 \] \[ 28 \times 2 - 16 + 12 \]Perform multiplication next:
\[ (28 \times 2) - 16 + 12 \] \[ 56 - 16 + 12 \]Perform subtraction:
\[ (56 - 16) + 12 \] \[ 40 + 12 \]Perform addition:
\[ 40 + 12 = 52 \]C) 52 is the correct answer after applying the symbol changes and following the order of operations.
The figure below shows a single organism undergoing reproduction, and the progeny have minor differences. What could be the reason for the variation?
Errors in RNA formation
Errors in DNA copying
Errors in protein formation
Gene being nonfunctional
The diagram illustrates a single organism undergoing reproduction, resulting in progeny with minor differences. This suggests some form of variation occurring during the reproductive process.
Correct Option: B) Errors in DNA copying
The value of -48 ÷ [4 × (6 - 5 + 1)] ÷ 24 =?
To solve this problem, we need to follow the order of operations, often remembered by the acronym PEMDAS/BODMAS (Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).
The value of the expression is \( -\frac{1}{4} \).
Correct Option: C) \( -\frac{1}{4} \)
The question asks to identify which form of carbon is used as a dry lubricant. This requires knowledge of the properties and applications of different allotropes and forms of carbon.
Correct Option: A) Graphite is used as a dry lubricant due to its layered structure, which allows its hexagonal carbon layers to slide easily over one another, reducing friction.
To determine which pair of numbers is co-prime, we need to find their greatest common divisor (GCD). Two numbers are co-prime (or relatively prime) if their GCD is 1. This means they share no common prime factors.
Based on the analysis, only the pair (17, 23) has a GCD of 1.
Correct Option: A) (17, 23) is the correct pair because their greatest common divisor is 1. Both 17 and 23 are prime numbers, and distinct prime numbers are always co-prime.
This question tests knowledge of the Seventh Schedule of the Indian Constitution, which distributes legislative powers between the Union (Central) and State governments. It lists subjects under the Union List, State List, and Concurrent List.
Correct Option: A) Post and Telegraph