Q1: The organisms which cause diseases in plants and animals are called:
(a) Pathogens
(b) Vectors
(c) Insects
(d) Worms
Q2: The sporozoites that cause infection, when a female Anopheles mosquito bites a person, are formed in:
(a) Liver of the person
(b) RBCs of mosquito
(c) Salivary glands of the mosquito
(d) Intestine of mosquito
Q1: A common biocontrol agent for the control of plant diseases is
(a) baculovirus
(b) Bacillus thuringiensis
(c) Glomus
(d) Trichoderma
Q2: Methanogens do not produce
(a) oxygen
(b) methane
(c) hydrogen sulfide
(d) carbon dioxide
Q1. A majority of organisms that are restricted to a narrow range of temperature are called as
(a) stenothermal
(b) endothermal
(c) ectothermal
(d) eurythermal
Q1. Which one is the most important human activity leading to extinction of wildlife?
(a) Alteration and destruction of the natural habitats.
(b) Hunting for commercially valuable wildlife products.
(c) Pollution of air and water.
(d) Introduction of alien species.
Q1: In the figure below which option a, b and c refers to line of sight?
Answer: option a
An equation involving an independent variable (variables), dependent variable and derivative or derivatives of the dependent variable with respect to the independent variable (variables) is called a differential equation.
It is an equation involving unknown functions and their derivatives w.r.t. one or more independent variables.
Fill in the blanks with suitable word(s).
1. The generation resulting immediately from a cross of the first set of parents is called ____________.
2. All cells forming the body of an organism, except the reproductive cells are called _________ cells.
3. A type of crossing in which only one pair of contrasting characters is considered is called _________ cross.
The University Grants Commission (UGC) has changed the way students are admitted to undergraduate programmes at central universities. The University Grants Commission (UGC) stated on Monday that starting in the 2022-23 academic year, the Central Universities Entrance Test (CUET) will replace the Class 12 marks-based admissions formula.
