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Plasmodium falciparum is a unicellular parasite which causes malignant malaria in human beings. Predict the group to which this parasite belongs.

An infectious disease is one that:

Select different levels of organization in the living world.

Q23. 'Sett Method' and 'Ratooning' are methods of Propagation of which of the following crops?

Urea, Uric Acid and Ammonia is obtained by breaking up of which of the following animal nutrients?

The organisms that stay together for shelter and nutrient is called

1. 2

Which of the following is not a correct match?

________is the hardest part of soil profile.

The following picture shows the different types of teeth present in your mouth. From the given options, select the option which matches with their name and function.

लेखक
को
अपनी
दादी
माँ
की
याद
के
साथ-साथ
बचपन
की
और
किन-किन
बातों
की
याद
आ
जाती
है?

Who discovered hydrometer which provides a scientific measurement of the density of liquids?

During respiration we breathe in __ and breathe out carbon dioxide.

In each of the following questions, some conclusions marked 1, 2, and so on are drawn from the given statements. Select the answer choice that presents only correct conclusions.
Statements:
Some flowers are beautiful.
Some beautiful things are round.
Some round things are costly.
Conclusions:
1. Some costly things are flowers
2. Some flowers are round
3. Some beautiful things are not costly
4. No flower is costly
Select the correct code:

What is the difference between a palisade tissue and a mesophyll cell?

What happens when gibberellins is activated during seed germination?

Abhi observed the following cell parts of two different cells under a microscope. He recorded his observation in the table given.

$\begin{array}{ccc}\text{Parts of cell}& \text{Cell}{}^{\prime }{\text{X}}^{\prime }& \text{Cell}{}^{\prime }{\text{Y}}^{\prime }\\ \text{Cell wall}& \text{Present}& \text{Absent}\\ \text{Cytoplasm}& \text{Present}& \text{Present}\\ \text{Nucleus}& \text{Present}& \text{Present}\\ \text{Cell Membrane}& \text{Present}& \text{Present}\\ \text{Chloroplast}& \text{Present}& \text{Absent}\end{array}$



Identify 'X' and 'Y'

Question 2 (e)

The bread or idly dough rises because of



a) heat

b) grinding

c) kneading

d) growth of yeast cells

Tick the correct answer:

(a)Amarbel is an example of

(i) autotroph

(ii) parasite

(iii) saprotroph

(iv) host

(b)The plant which traps and feeds on insects is

(i) Cuscuta

(ii) china rose

(iii) pitcher plant

(iv) rose

The chemical fogging carried out in our societies for controlling mosquitoes is done by

The number of chromosomes in the majority of human cells is =

The amount of water vapour in the air is high in

Which of the following statements regarding food chain is false?

Night blindness is a ____ deficiency disease.

Which among the following is a function of blood?

An infectious disease is one that:

The percentage of oxygen in inhaled air is ___________.

Which of the following animals can survive both on land as well as in water?

Which of the following false fruits is/are eaten?

Cheese and cream are the major source of ___.

Our body carries out reflex actions without the control of brain. Which other part of the nervous system is responsible for this?