Explore topic-wise InterviewSolutions in .

What are the tiny air sacs in the lungs called?

_______is the capacity of our body to deal with foreign substances.

Ascaris is a ______.

A : Auxins promote apical dominance by suppressing the lateral growth of axillary buds.

R : Periodic pruning of shoots in mulberry helps in making the shoots bushy.

Identify the phylum having following characteristics: multi-cellular, radially symmetrical, aquatic, hollow gut.

Deficiency of thiamin leads to a disease which is called as __.

Write full form of AIDS.

Heart of crocodile is ___ chambered.

Cell wall of eukaryotic decomposer is made up of

Match the disease with the organisms which cause them.

$\begin{array}{cc}\text{Diseases}& \text{Bacteria}\\ \text{A. Cholera}& \text{i.}Mycobacteriumtuberculosis\\ \text{B. Pneumonia}& \text{ii.}Yersiniapestis\\ \text{C. Bubonic plague}& \text{iii.}Vibriocholerae\\ \text{D. Tuberculosis}& \text{iv.}Streptococcuspneumoniae\end{array}$

Question 23
Fill in the blanks

(a) Pneumonia is an example of___disease.
(b) Many skin diseases are caused by___.
(c) Antibiotics commonly block biochemical pathways important for the growth of __.
(d) Living organisms carrying the infecting agents from one person to another are called ____.

Question 49 (a)
An element X which is a yellow solid at room temperature shows catenation and allotropy. X forms two oxides which are also formed during the thermal decomposition of ferrous sulphate crystals and are the major air pollutants.

(a) Identify the element X

Mercury is used in the experiment of anaerobic respiration to ensure that

The lining of intestine of Man is?

How are oil cakes are formed ?

What is humus ? What are its functions ?

What is the function of cytoplasm?

Which of these is NOT the name of a kingdom?

You are a Science enthusiast, and are currently interested in studying the concept behind various kinds of complexion in the world population. You consider three individuals in a group, who have the typical looks of an African negro, an Indian, and a European. Arrange them in increasing order of the amount of melanin in their skin.

Consider the following diagram and choose the correct option that would replace a, b and c respectively?

The method of prevention of water pollution from an industrial perspective is:

Water vascular system is a distinctive feature present in echinoderms. Which of the following functions is not performed by the water vascular system?

Question 9 (i)
Carry out the following osmosis experiment:
Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now,
(a) Keep cup A empty
(b) Put one teaspoon of sugar in cup B
(c) Put one teaspoon of salt in cup C
(d) Put one teaspoon of sugar in the boiled potato cup D.
Keep these for two hours. Then observe the four potato cups and answer the following:

(i) Explain why water gathers in the hollowed portion of B and C.

Identify the correct statements with respect to an anther.

Name the various components of the excretory system of man with a neat labelled diagram. [5 MARKS]

When food rich in starch is treated with iodine, it turns into _____.

Solutions A and B are separated by a semi-permeable membrane and water moves from A to B. Hence, solution B is a/an

How does lysosome help in regression of tadpole?

What is cytoplasm? elaborate its function? Also name 2 cell organelles that contain their own genetic material

diffrentiate between the structure of onion cells and cheek cells.

Which is the largest nitrogen sink?

Which of the following tissues get damaged when you fall down and get hurt?

Clinical fever in malaria is due to

Which of the following life processes releases energy required for body functions?

A solid consisting of a right circular cone, standing on a hemisphere, is fully submerged in a right circular cylinder full of water. The radius of the cylinder is 3 cm and its height is 6 cm. The radius of the hemisphere is 2 cm and the height of the cone is 4 cm.

Find the volume of water left in the cylinder.

Which of these is a method of contraception that prevents the release of an egg from the ovary?

Enumerate various cells of connective tissue.

Define the cell.

Bile helps in digestion of :

What are the sources of "concentrates" with referen ce to cattle feed ?