Which one of the following statement is incorrect about ecological pyramids?

Identify the statements which are not correct with respect to embryonic development:
(A) By the end of 12 weeks the body of foetus is covered with fine hair
(B) The first sign of growing foetus is the appearance of heart beat
(C) Foetus develop limbs and digits by the end of second month of pregnancy
(D) The ectoderm, mesoderm and endoderm are formed after first trimester of pregnancy
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Observe the figures and answer the question.

Coleoptile and Coleorrhiza in the embryo of grasses are:

The interaction between two species where one species is benefitted and the other is neither benefitted nor harmed is known as:

The probability of having a haemophilia carrier daughter by a haemophilia carrier mother and a normal father is :

The spermatids are transformed into spermatozoa by the process called as

Identify the correct sequence of stages in the process of decomposition.
(A) Humification
(B) Fragmentation
(C) Catabolism
(D) Mineralisation
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Benzene ring in phenol is expected to give the characteristic substitution or replacement reactions i.e. halogenation, nitration, sulphonation, alkylation etc. In these reactions, the attacking reagent is electrophile. The phenolic group activates the ortho and para positions in the ring due to conjugation. Disubstitution reactions are quite fast as the electron density in the ring has increased considerably. Phenols do not respond to nucleophilic substitution reactions as it is influenced by phenolic group.
Secondary alcohol among the following is:

(A)

(B) \(H _2 C = CH _2- CH _2 OH\)

(C) \(H _3 C - CH _2- CH _2 OH\)
(D)
(E)

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The maximum value of \(f(x)=\frac{\log x}{x}\) for \(x\) in \([2, \infty]\) is

A person invested ₹ \(2,50,000\) in a fund.
At the end of the year, the value of the fund is ₹ \(3,00,000\).
If the market price is the same at the end of the year, then the nominal rate of return is :

Match List - I with List - II.

List - I (Electronic Device)	List - II (Application)
(A) Zener diode	(I) Rectifier
(B) Capacitor	(II) Amplifier
(C) Transistor	(III) Voltage regulator
(D) p-n junction diode	(IV) Filter circuit

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Which one of the following cause of biodiversity loss is reflected in the phrase "need turns to greed"?

If \(A\) and \(B\) are independent events, then which of the following statements are TRUE?
(A) \(P(A \cap B)=P(A) \cdot P(B)\)
(B) \(P(A \cap B)=P(A)-P(B)\)
(C) \(P(A \cup B)=P(A)+P(B)-P(A) \cdot P(B)\)
(D) \(P(A \cap B)=P(A) \cdot P(B \mid A)\)
Choose the correct answer from the options given below :