Identify the wrong statements for poriferans from given statement… - Vidyadip

MCQ

Identify the wrong statements for poriferans from given statements.
(i) Metameric segmentation present in poriferans
(ii) Notochord is a mesodermally derived in poriferans.
(iii) Poriferans are primitive multicellular and have cellular level of organisation.
(iv) Digestion is intracellular in poriferans
(v) Poriferans are hermaphrodite and fertilisation is internal.

A
(i) and (iii)
B
(ii), (iv) and (v)
C
(iii) and (iv)
✓
(i) and (ii)

✓

Answer

Correct option: D.

(i) and (ii)

D

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

In man, blood passes from the post caval into the diastolic right atrium of the heart because of

$ABO$ blood groups are controlled by the gene

Assertion: Blood is a special connective tissue consisting of a fluid matrix plasma and formed elements.
Reason: Plasma is a straw coloured, viscous fluid constituting nearly 45 per cent of the blood.

Mark the given statements True (T) or False (F).
(i) Inheritance is the process by which characters are passed on from parents to progeny.
(ii) Mendel conducted hybridisation experiment on wild peas for seven years and proposed the laws of inheritance in living organisms.
(iii) The first hybrid generation is also called filial progeny or $F_2$
(iv) In a monohybrid cross, the phenotypic and genotypic ratio in $F_2$, generation is 3:1 and 1:2:1 respectively.
(v) According to Mendel, characters are controlled by discrete units called factors and now we call them genes.
(vi) Genes which code for a pair of contrasting traits are known as alleles.
(vii) For a character like height, TT and tt are called phenotype of organism while descriptive terms tall and dwarf are genotype.
(viii) Both the alleles can be similar in case of homozygotes (eg. TT or tt) or can be dissimilar as in the case of heterozygote (eg. Tt) for a particular trait (eg. height).
(ix) During the process of meiosis, the segregation of alleles is a random process and so there is a 50% chance of a gamete containing either allele.

$A$ : The inner lining of trachea, bronchi and fallopian tubes has simple epithelium with non-motile cilia.

$R$ : Cilia form the brush-border.

Which is true statements ?

We can produce a concentrated urine. This is facilitated by a special mechanism. Identify the mechanism.

The thymus is a lobed organ located near the $...A...$ and beneath the $...B... $ The most appropriate combination for $\mathrm{A}$ and $\mathrm{B}$ is

The recently discovered hormones, melatonin and serotonin are secreted at ends of nerve fibres by the activity of