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Which of the following has not been recognised as a Biodiversity Hotspot in the world?

The major role of the circulatory system is _______.

Which of these statements concerning ribs is true?

Dental formula for milk teeth is

Biradial symmetry and lack of cnidoblasts are the characteristics of

In an organism, the rate of a reaction is enhanced by biocatalysts called_____.

In $C_4$-plants, Calvin cycle enzymes are present in

During ecological succession.

A cross is made between true breeding lines of pea plants with axillary and terminal flowers. If 1240 progeny are obtained, how many plants are homozygous with axillary flowers and heterozygous with axillary flowers in the $F_2$ generation?

Which of the following occurs in meiosis but not in mitosis?

The medicinal plant Rauwolfia vomitoria shows different levels of potency depending on which area of the Himalayan ranges you pick them up from. This is an example of _________________.

Selection of homozygous plant is:

Acid rains are caused by excessive atmospheric pollution due to

Vascular bundle having pholem at the centre encircled by xylem is known as

Protoandry and protogyny are examples of

The structure of a protein can be denatured by:

Mast cells are associated with__________

Genital herpes is caused by ___.

mangifera indica is the scientific name of Mango. What is the mistake done while writing it?

Vegetative propagation in plants is a type of asexual reproduction because:

Match columns I with columns II and select the right answer :

$\begin{array}{cccc}& Column-I& & Column-II\\ A& IUD& 1& Men\\ B& Condom& 2& Women\\ C& Graafianfollicle& 3& Testes\\ D& Sperms& 4& Ovary\end{array}$

Which of these amino acids is NOT a hydrophilic amino acid?

The exchange of gases between the alveoli and blood in the lungs, as well as between blood and tissue, depends on

Identify the incorrect statement(s) regarding the components of PNS.

I. The nerves carrying impulses from CNS to peripheral system are sensory nerves or afferent nerves

II. The nerves carrying impulses from peripheral system to CNS are motor nerves or efferent nerves

III. Afferent nerves bring in impulses from the auditory, visual and touch receptors.

IV. Efferent nerves coordinates impulses towards effector organs.

___ represents the junction between ovule and funicle.

A spherical black body of radius 12 cm radiates 450 W power at 500 K. If the radius were halved and the temperature doubled, the power radiated would be

The amount of water present in a dry mature seed is around

Double fertilization

Which of these statements about lipids, is incorrect?



I. Lipids are part of the cell membrane, cell organelles and other biological membranes.



II. Lipids also function as insulators, they add buoyancy to cells and as shock absorbers.

III. High density Lipoproteins (HDL) are harmful lipids, as they are carried by blood easily and get deposited in high pressure vessels as a blocking layer .



IV. Low density Lipoproteins (LDL) are useful lipids carried in form of lipoproteins and help in clearing lipid depositions; they are also used in the formation of hormones.

The amount of energy transferred from one trophic level to next is

Binary fission is a regular mode of reproduction in

During synapsis the number of thread (Chromonemata) in each chromosome is:

Which of the choices below is not a functional process performed by the respiratory system?

The transport in xylem in usually unidirectional, whereas in phloem it is __.

A certain gene that is necessary for formation of antibody that gives resistance against a very rare kind of infection in humans, is present on a sex chromosome. On testing a large population it was seen that number of females who have the infection is more than the number of males. This means that the gene is present on the __ chromosome.

In Mendel’s experiments, the $F_1$ progeny resembles one of the two parents. The trait that is not seen is

The muscle which on contraction rotates the forearm to make the palm face upward and forward is

Citric acid can be produced from:

A unique feature common to the alveoli of lungs and the villi of the intestine is that both

Which of the following statements is/are, not correct, regarding the head of a cockroach.

i). It is formed by the fusion of 8 plates.

ii). Head is arranged in an axis perpendicular to the axis of the body.

iii). Mouth parts are of varying sizes.

iv). Head is Hexagonal in shape.

Fill in the blanks, in context with the digestion of fats in Small Intestine:

Digestion of fats is taken over by___(i)___,containing factors like ___(ii)___, ___(iii)___ and ___(iv)___ to convert them into simpler forms like fatty acids and glycerol.

A wave is travelling from heavier string to a lighter. If the ratio of wavelength of incident to transmitted wave is $1:4$, then the ratio of the linear mass density of heavier string to the lighter string is

Match the following pituitary hormones with their site of action.

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. GnRH}& \text{a. Thyroid gland}\\ \text{ii. ACTH}& \text{b. Mammary glands}\\ \text{iii.TSH}& \text{c.Adrenal~gland}\\ \text{iv. Prolactin}& \text{d. Gonads}\end{array}$

Balanoglossus is a