Which one of the mentioned reasons does not cause the loss of biodiversity?

Which one of the given diseases has symptoms like stomach pain, constipation, headache, loss of appetite and sustained high fever?

Maximum transgenic animals existing are:

Read the following passage carefully and answer the given questions.
Theory of Evolution
The evolution of life is a gradual process through which simple organisms are transformed into complex life forms over billions of years. It involves genetic changes, adaptation to the environment, and the emergence of diversity in species. Fossil records provide evidence of extinct life forms and transitional stages. Evolution is influenced by factors such as mutation, genetic recombination, and environmental pressure, shaping the biodiversity we see today. Charles Darwin and Alfred Russel Wallace were pioneering naturalists who developed the theory of evolution by natural selection.
Alfred Russel Wallace, a naturalist, arrived at conclusions similar to Darwin while working in:

Which one of the following human ancestors probably lived in East African grasslands two million years ago?

Read the following paragraph carefully and answer the given questions.
In the year 1963 the two enzymes responsible for restricting the growth of bacteriophage in E. coli were isolated. The first restriction endonuclease - Hind II, whose functioning depended on a specific DNA nucleotide sequence was characterized five years later. It was found that Hind II always cut DNA molecules at a particular point by recognizing a specific sequence of six base pairs. This specific base sequence is known as the recognition sequence for Hind II. Besides Hind II, today we know more than 900 restriction enzymes that have been isolated from over 230 strains of bacteria, each of which recognize different recognition sequences.
DNA fragments can be separated by a technique known as:

Which one of the following takes place in all eukaryotic organisms as a method of cellular defense?

Arrange the following geological periods in latest to oldest duration of existence.
(A) Triassic
(B) Carboniferous
(C) Cretaceous
(D) Permian
Choose the correct answer from the options given below:

The value of \(\tan ^2\left(\sec ^{-1} 2\right)+\cot ^2\left(\operatorname{cosec}^{-1} 3\right)\) is:

The ratio of densities of nuclei with mass numbers A and 2A, respectively is

Answer the question on the basis of passage given below :
There are some deposits of nitrates and phosphates in the earth’s crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under laboratory conditions, but microbes do it easily. Ammonia forms a large number of complexes with transition metals. Hybridisation easily explains the ease of sigma donation capability of NH₃ and PH₃. Phosphine is an inflammable gas, prepared from white phosphorus.
Which of the following is the correct statement?
A. Between NH₃ and PH₃, NH₃ is a better electron donor because the lone pair of electrons occupy spherical 's' orbital and is less directional.
B. Between NH₃ and PH₃, NH₃ is a better electron donor because the lone pair of electrons occupies sp³ orbital and is more directional.
C. Between NH₃ & PH₃, PH₃ is a better electron donor because the lone pair of electrons occupies sp² orbital and is more directional.
D. Between NH₃ & PH₃, PH₃ is a better electron donor because the lone pair of electrons occupies 's' orbital and is less directional.
Choose the most appropriate answer from the options given below:

Other than absorption of phosphorus from soil, Glomus gives other benefits to plants like:
A. Addition of organic matter to the soil.
B. Resistance to root borne pathogens.
C. Tolerance to salinity
D. Increase in soil fertility
E. Tolerance to drought
Choose the correct answer from the options given below:

Match List-l with List-II

List-I(Name of Vitamin)	List-II(Deficiency disease)
(A) Vitamin A	(I) Beri Beri
(B) Vitamin B\(_1\)	(II) Scurvy
(C) Vitamin C	(III) Rickets
(D) Vitamin D	(IV) Xerophthalmia

Choose the correct answer from the options given below: