STD 11 - 2. Biology classification — NEET STD 11 Science — Question

The mitotic spindle disappears in

The main plant body is differentiated into true root, stem and leaves in

In which of the following, all listed genera belong to the same class of algae?

Laminarin is the stored food in

The science of naming the plant is known as

Parachute like pappus is found in

Which two taxon are mentioned in scientific name of organism?

When anthers and stigma mature at the same time it is called

Choose the correct one for dicotyledonous stem from given statements.
(i) Epidermis is the outermost protective layer of the stem, covered with a thin layer of cuticle, it may bear trichomes and a few stomata.
(ii) The cells of the endodermis are rich in starch grains and the layer is also referred to as the starch sheath.
(iii) Pericycle is present on the inner side of the endodermis and above the phloem in the form of semi-lunar patches of parenchyma.
(iv) In between the vascular bundles there are a few layers of radially placed parenchymatous cells, which constitute medullary rays.
(v) A large number of vascular bundles are arranged in a ring.
(vi) Vascular bundles are conjoint and closed.