Question
Ulothrix occurs in

Answer

a
(a) Ulothrix is mostly found in aerated fresh water of rain puddles, lakes, coldsprings or slow running water of streams.

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

Similar questions

In plants, energy is produced during the process
All are membrane bound cell organelles except  or Which of the following cell organelles lacks a unit membrane
Which of the following does not function as an electron carrier
Predators also help in ...$A$... species diversity in a community, by ... $B$... the intensity of competition among competing prey species. Here $A$ and $B$ can be
What is the role of $RNA$ polymerase $III$ in the process of transcription in eukaryotes?
$DNA$ replication is semi-conservative as
Read carefully the following statements

$I.$ Funaria possesses unicellular and unbranched rhizoids

$II.$ Gemmae are asexual buds, which originate from small receptacles called gemma cups

$III.$ The Sphagnum plants have magnificent property of retaining water

$IV.$ Mosses along with lichens are the first organisms to colonise rocks

Which of the statements given above are correct?

Mark the given statements True (T) or False (F).
(i) In majority of the dicotyledonous plants, the direct elongation of the radical leads to the formation of secondary root which grows inside the soil.
(ii) In monocotyledonous plants, the primary root is short lived and is replaced by a large number of roots.
(iii) In some plants like grass, Monstera and banyan tree, roots arises from parts of the plant other than the radical and are called adventitious roots.
(iv) Roots hairs are present in region of elongation.
(v) The zone proximal to region of elongation is called the region of maturation.
(vi) Tap roots of carrot, turnip and adventitious roots of sweet potato, get swollen and store food.
(vii) Hanging structure that support a banyan tree are called stilt roots.
(viii) The stems of maize and sugarcane have supporting roots coming out of the upper nodes of the stem are called stilt roots.
(ix) In some plants such as Rhizophora growing in swampy areas, many roots come out of the ground and grow vertically upwards. Such roots are called pneumatophores and help to get oxygen for respiration.
(x) The regions of the stem where leaves are born are called nodes.
(xi) Underground stems of Zaminkand, Colocasia are modified to store food in them.
(xii) Tendrils which develop from axillary buds, are slender and spirally coiled and help plants to climb.
(xiii) A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of roots is found in terrestial plants like pistia and eichhornia.
(xiv) Leaves originate from shoot apical meristems and are arranged in an acropetal order.
(xv) A typical leaf consists of three main parts: leaf base, petiole and lamina
Choose the correct option given below :-
$A$ : In mosses, second stage of gametophyte consist ofupright,slender axes bearing spirally arranged leaves.
$R$ : This stage of gametophyte consists of sex organs.
If a chemical process is affected by more than one factors then its rate will be determined by