Identify the wrong statements about human excretory system and choose the correct option accordingly: I. Kidneys are reddish brown and bean-shaped structure, II. Kidneys are situated between the last thoracic and third lumber vertebra, III. Each kidney of an adult human measures 10-12 cm in length, 5-7 cm in width, 2-3 cm thickness, and average weight 120-170 gram.

Kidneys are the main excretory organ in humans. Kidneys are reddish-brown, bean-shaped structure situated between the levels of the last thoracic and third lumber vertebrae closer to the dorsal inner wall of the abdominal cavity. Each kidney is 10-12 cm long, 5-7 cm width, 2-3 cm in thickness. The average weight of the kidney is 120 to 170 gm

The correct Option is "None of these"

Identify the wrong statement

If a body has momentum, it must have kinetic energy also, (1) is the wrong statement If the energy is totally potential, it need not have momentum (2) is correct (3) and (4) are also correct

The correct Option is "A body can have momentum without energy"

A body can have energy without momentum

The momentum is conserved in an elastic collision

Kinetic energy is not conserved in an inelastic collision

Identify the wrong statements regarding post-fertilization development.

The outer integument of ovule develops into testa. The inner integument of ovule develops into tegmen.

The ovary wall develops into pericarp

The correct Option is "The outer integument of ovule develops into tegmen"

The fusion nucleus (triple nucleus) develops into endosperm

Identify the wrong statement.

In domesticated fowls, the sex of progeny depends on the type of egg rather than sperm, as two different types of gametes are produced by females (ZW), while males have a same pair of sex chromosome (ZZ).

In male grasshoppers, 50% of the sperms have no sex chromosome

Usually , female birds produce two types of gametes based on sex chromosome

The human males have one of their sex chromosomes much shorter than other

The correct Option is "In domesticated fowls, the sex of the progeny depends on the type of sperm rather than the egg"

Identify the wrong statement in the following:

Among the isoelectronic species smaller is +ve charge, larger is ionic radius, e.g., Ionic radius : ${\rm{N}}{{\rm{a}}^ + } > M{{\rm{g}}^{2 + }} > A{{\rm{l}}^{3 + }}$

Atomic radius of the elements increases as one moves down the first group of the periodic table

Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the periodic table

The correct Option is "Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius"

Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius

Identify the wrong statement in the following. Coulomb’s law correctly described the electric force that

Coulomb’s law is appliable for charged particles, it is not responsible to bind the protons and neutrons in the nucleus of an atom.

binds the electrons of an atom to its nucleus

The correct Option is "binds the protons and neutrons in the nucleus of an atom"

binds atoms together to form molecules

Binds atoms and molecules to from solids

Identify the WRONG statement

Potential energy as well as force are positive if there is repulsion between the particles and negative if there is attraction. We take of only the magnitude of values when discussing decrease or increase of energy. As ${\rm{P}}{\rm{.E}}{\rm{.}} = \frac{{{Q_1}{Q_2}}}{{4\pi {\varepsilon _0}r}},$ Plus or minus, i.e., whether both are of the same sign or different, if $r$ decreases, the value increa se, Therefore (c) is wrong

The electrical potential energy of a system of two protons shall increase if the separation between the two is decreased

The electrical potential energy of a proton electron system will increase if the separation between the two is decreased

The correct Option is "The electrical potential energy of a proton electron system will increase if the separation between the two is increased"

The electrical potential energy of a system of two electrons shall increase if the separation between the two is decreased

Identify the wrong statement in the following. Coulomb’s law correctly describes the electric force that

Nuclear force binds the protons and neutrons in the nucleus of an atom

Binds the electrons of an atom to its nucleus

The correct Option is "Binds the protons and neutrons in the nucleus of an atom"

Binds atoms together to form molecules

Binds atoms and molecules together to form solids

Identify the WRONG statement

The charged particle could be positive or negative. The positive charge will move in the direction of the field. But negative charge will move opposite to the field

In an electric field two equipotential surface can never intersect

The correct Option is "A charged particle free to move in an electric field shall always move in the direction of $\vec E$"

Electric field at the surface of a charged conductor is always normal to the surface

The electric potential decrease along a line of force in an electric field

Identify the wrong statements in the following.

Ozone layer permits the infrared radiations to pass through but doesn’t permit the higher range of ultraviolet radiation to pass through

Chlorofluorocarbons are responsible for ozone layer depletion.

Green house effect is responsible for global warming.

The correct Option is "Ozone layer does not permit infrared radiation from the Sun to reach the earth."

Acid rain the is mostly because of oxides of nitrogen and sulphur.

Which of the following does not belong to phylum-Platyhelminthes?

Fasciola or liverfluke, Planaria and Taenia or tapeworm are examples of animal that belonging to phylum-Platyhelminthes. Wuchereria of filiarial worm is an example of phylum-Aschelminthes

The correct Option is "Wuchereria"

The hydrophilic hormones interact with …A… . While the hydrophobic hormones interact with …B… Choose the correct option for A and B

Hydrophilic hormones Generally are protein, polypeptide, hormones. They interact with cell membrane receptors, e.g., FSH glycogen, epinephrine. Hydrophobic hormones Generally are steroids in nature. They interact with nuclear receptors e.g., oestrogen do thyroxine

The correct Option is "A-cell membrane receptors; B-nuclear receptors"

A-nuclear receptors; B-cell membrane receptors

A-intracellular receptors; B-nuclear receptors

A-nuclear receptors; B-intracellular receptors

Animal of the same phylum are grouped below. Choose the incorrect group from given below option

Shark, snake, whale, reptile belong to phylum-Chordata. Insect, spider and shrimp belong to phylum-Arthropoda. Fish, snail, squid and slug are molluscans, while earthworm is annelids, millipede is arthropods, Hirudinaria is common leech of phylum-Annelida

The correct Option is "Earthworm, millipede, leech"

The blue baby syndrome results from

Excess nitrate combines with haemoglobin and forms non-functional methaemoglobine that inhibits oxygen transport. It is known as methaemoglobinemia or blue baby syndrome.

The correct Option is "Methaemoglobin"

Excess of TDS (Total Dissolved Solids)

Identify the correct set of arteries formed from each common iliac artery of rabbit.

In pelvic region, each common iliac artery gives out an ilio-lumbar artery to supply the dorsal body wall and then, splits into a long external and short internal iliac arteries. This external iliac artery enters into the hindlimb of its side as femoral artery. The internal iliac splits into several branches to supply urinary bladder (vesicular), wall of rectum, anal region and also uterus in females.

Internal iliac, External iliac, Vesicular, Lumbar, Posterior epigastric arteries

Internal iliac, External iliac, Vesicular, Posterior, Mesenteric epigastric arteries

The correct Option is "Internal iliac, External iliac, Vesicular, Uterine, Posterior epigastric arteries"

Internal iliac, External iliac, Uterine, Lumbar, Posterior epigastric arteries

All of the above.Placenta release oestrogens, progesterone, hCG and relaxin. That’s why it can be considered as endocrine gland

hCG (Human Chorionic Gonadotrophin)

The correct Option is "All of the above"

Almost same $\rho C{O_2}$ in humans is found in

Deoxygenated blood and tissues both have the same partial pressure of ${O_2}\,and\,C{O_2}$

Deoxygenated blood and oxygenated blood

The correct Option is "Deoxygenated blood and tissues"

Identify the animal and the phylum to which its belongs

The correct Option is "Balanoglossus"

Ovum receives the sperm in the region of

Ovum receives the sperm in the region of animal pole. The sperm fuses with ovum to form diploid zygote. The pole of ovum opposite to animal pole is coiled vegetal pole.