NEET · Biology · STD 11 - 3. Plant kingdom

Read the following five statements \((A\) to \(E)\) and select the option with all correct statements.
\(A.\) Mosses and lichens are the first organisms to colonise a bare rock.
\(B.\) Selaginella is a homosporous pteridophyte.
\(C.\) Coralloid roots in Cycas have \(VAM\).
\(D.\) Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.
\(E.\) In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.

A \(A, D\) and \(E\)
B \(B, C\) and \(E\)
C \(A, C\) and \(D\)
D \(B, C\) and \(D\)

Verified Solution

Answer & Solution

Correct Answer

(A) \(A, D\) and \(E\)

Step-by-step Solution

Detailed explanation

(a) : Selaginella is a heterosporous pteridophyte. Corralloid roots of Cycas harbour blue green algae like Nostoc, Anabaena and are not a type of \(VAM\) (vesicular arbuscular mycorrhiza) which is a symbiotic association with fungus.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Match List I with List II related to embryonic development at various months of pregnancy :

List I	List II
A. The foetus movement starts and hair appears on the head	I.24weeks of pregnancy
B. The foetus develops limbs and digits	II.20weeks of pregnancy
C. The foetus develops external genital organs	III.8weeks of pregnancy
D. The foetus body is covered with fine hair; eyelids separate and eyelashes are formed	IV.12weeks of pregnancy

Choose the correct answer from the options given below :

NEET 2026 Hard

Which of the following is required as inducer(s) for the expression of Lac operon?

NEET 2016 Medium

Explore more questions on app

From NEET

Column \(- I\) gives certain physical terms associated with flow of current through a metallic conductor. Column \(- II\) gives some mathematical relations involving electrical quantities. Match Column \(- I\) and Column \(- II\) with appropriate relations.

Column \(- I\)	Column \(- II\)
\((A)\) Drift Velocity	\((P)\) \(\frac{m}{n e^{2} \rho}\)
\((B)\) Electrical Resistivity	\((Q)\) \(\mathrm{ne} v_{\mathrm{d}}\)
\((C)\) Relaxation Period	\((R)\) \(\frac{\mathrm{eE}}{\mathrm{m}} \tau\)
\((D)\) Current Density	\((S)\) \(\frac{E}{J}\)

NEET 2021 Medium

Explore more questions on app

List \(I\) (Types of Stamens)	List \(II\) (Example)
\(A\). Monoadelphous	\(I\). Citrus
\(B\). Diadelphous	\(II\). Pea
\(C\). Polyadelphous	\(III\). Lily
\(D\). Epiphyllous	\(IV\). China-rose