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Fill in the correct sequence for generation of Action potential in a neuron

Stimulus ⟶Inflow of $N{a}^{+}$ ions ⟶ _(i)_____⟶Repolarisation ⟶___(ii)______

Pulses of daily use belong to the family

Match these movements with the type of cells/limbs in human body.

$\begin{array}{cc}ColumnI& ColumnII\\ i.\text{Amoeboid}& a.\text{Limbs}\\ ii.\text{flagellar}& b.\text{Macrophages}\\ iii.\text{Ciliary}& c.\text{Sperm}\\ iv.\text{Muscular}& d.\text{Respiratory tract}\end{array}$

What is the maximum number of megaspores produced by an ovule?

Role of spleen of mammals is to

Which of the following is correct order of evolutionary history of man?

Which among the following would you identify as a place with higher species diversity?

Removal of introns and joining the exons in a defined order in a transcription unit is called:

If a person shows production of interferon in his body, the chances are that he has got an infection of

Photochemical smog is formed :

Which of the following is most important for speciation?

The father of Indian Bryology is ___.

Heroin is

International Ozone day is observed on

Widal test is carried out to test

When pollen is transferred from anther of a flower to stigma of another flower of the same plant it is referred to as

If the pollen cell contain 18 chromosomes, then number of chromosomes in the enderpesm will be

Assisted reproductive technology (ART), IVF involves the transfer of?

Growth hormone treatment induces formation of seedless fruits. Such fruits are called

Cyclosporin A used as immunosuppressive agent is obtained from

The dental formula of heterodont teeth in human is

Movement of tentacles in Drosera is

Some blue-green algae can be used as biofertilizers because they are:

What is the most important role of fruits?

In an experiment, DNA was found to have $31\%$ adenine and $19\%$ guanine. The quantity of cytosine would have been ___________.

Identify the set of plants with fleshy pericarp.

Label the part of myosin structure

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Identify the type of life cycles represented by the following diagrams.

Which one of the following pairs of the kinds of cells and their secretion are correctly matched?

What portion of the uterus is shed during menstruation?

On the basis of characters in group A and group B identify the correct option

$\begin{array}{cc}\text{Group -A}& \text{Group -B}\\ \text{(i) Land plant}& \text{(i) Land plant}\\ \text{(ii) Plant body forms thallus}& \text{(ii) Sporophyte is divided root, stem and leaves}\\ \text{(iii) Gemma cups present on dorsal surface}& \text{(iii) Vascular tissue is present}\\ \text{(iv) Multicellular scales are present}& \text{(iv) Fruits are absent}\\ \text{(v) Gametophytic plant body}& \text{(v) Seeds are present}\end{array}$

Why is it necessary to remove sulfur from petroleum products?

Thick and thin filaments form the (i)__________. The thick and thin filaments overlap and form a definite pattern that form repeating units called (ii)______.

The first stable product of fixation of atmospheric nitrogen in leguminous plants is:

Which of the following is aerosol?

A sex linked trait / disease is

Post-fertilisation events occur after the formation of zygote, and is collectively termed -

Which of the following elements is not remobilized from one part of the plant to another?

The most important reason for cell division to occur is:

Mature ovum in human being is surrounded by

When do centrioles split and go to the poles of the cell?

Regarding the assertion and reason; choose the correct option.

Assertion [A]: Salivary glands and intestinal glands are intrinsic glands.

Reason [R]: They aid in intracellular digestion.