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A child has less body weight. He has a thin face and retarded physical and mental growth. Which disease is the child suffering from?

Explain giving reasons [3 MARKS]

(a) A balanced diet is necessary for maintaining a healthy body.
(b) Our surrounding area should be free of stagnant water.
.

Towards the end of meiosis II in gametogenesis, which of the following structures are formed again?

In biological processes, many derived sugars are formed by monosaccharides either by deoxygenation or reduction. An exemplar molecule is_____.

Role of spleen of mammals is to

From the image below, which of the following statement(s) is/are correct?

Question 49
Which kind of plastid is more common in

(a) roots of the plant
(b) leaves of the plant
(c) flowers and fruits

Explain the different methods of food preservation. [5 MARKS]

Do sponges have nervous system?

Write the 5 difference between smooth endoplasmic reticulum and rough endoplasmic reticulum ?

One of the following statements w.r.t excretion by the human kidneys is correct:

Set up an experiment to demonstrate osmosis.

Describe general characters, classification and example of old division Spermatophyta.

What is jaundice?

Result of ozone hole is -

Oxygen for the process of cellular respiration is taken from

Discuss Rusting in brief.

The cytoskeleton is made of

The movement of the earthworm's body is brought about by its:

Which of the following combination of crop will give maximum yield in mixed cropping?

Which of the following is/are single-celled organisms?

Identify the type of mushroom.

The tissue present below the skin epidermis which acts as a shock absorber and insulating layer is called____.

Which of the following tissue is not found in animals?

Which type of WBC is most abundant in lymph?

Rearrange the following and match them with their correct descriptions:

1. FFUDNISIO
2. ALIDSYSI
3. ONTRONIUSGE TEWSSA
4. 108L

Description

(i) The process of removing nitrogenous waste products from the blood using an artificial kidney.
(ii) The initial filtrate produced daily in a healthy adult.
(iii) The waste products from the blood pass into dialyzing fluid by this process.
(iv) Dialysing fluid is devoid of this substance.

Which of the following is not a simple tissue?

Name two fresh water fishes of India.

Is archea still found on earth till date

Differentiate between Nematoda and Annelida. [3 MARKS]

Name the disease transmitted by dog bite.

Which of the following statements is/are correct about breathing?

Statement 1- Breathing is a voluntary process.
Statement 2-Breathing is a physical process.
Statement 3- It is known as external respiration.
Statement 4- Breathing is same as respiration.

Q1) why do nerve cells have a typical elongated shape?

Q2) what effects the movement of water across the plasma membrane ?

Which part of the respiratory system is not part of the passageway for inhaled air?

Match the reasons given in column 2 to the features of cacti on column 1.

$\begin{array}{cc}Featureofcacti& Reasons\\ a.\text{Spiny leaves}& \left(i\right)\text{Absorbing water from depths of soil}\\ b.\text{Thick, round fleshy stems}& \left(ii\right)\text{Prevent loss of water by transpiration}\\ c.\text{Deep roots}& \left(iii\right)\text{Store water}\\ d.\text{Closed stomata during the day}& \left(iv\right)\text{Prevent animals from eating the cactus}\\ e.\text{Carbon dioxide storage during the night}& \end{array}$

Choose the correct option that matches correctly. There can be multiple matches.

Which is second largest phylum of Invertebrata.

A thin ___________ lies immediately beneath the cell-wall and surrounds the cytoplasm.

The structure which prevents the entry of food into respiratory tract is

Which of these are vascular tissues in the plants?

If the blood pressure is too low, the cardiovascular control centre in the medulla oblongata attempts to compensate by causing a/an _______.

Which is not a function of humus?

Statement 1: Dentine of the tooth consists of dead tissues.

Statement 2: Enamel is the softest part of the tooth and consists of living tissue.

Which of these is/are part(s) of the alimentary canal?

Which of the following are the producers that do not depend on sunlight for the preparation of food?

Name two products obtained from honeybees and three products obtained from fisheries. [5 MARKS]

Sequence of taxonomic categories is

In the kidney the correct sequence of formation of urine involves the following processes: