Explore topic-wise InterviewSolutions in .

Differentiate between the following

a] Mixed cropping and inter cropping

Define Osmosis. What are the different types of osmosis? Give examples. [5 MARKS]

Label the parts of the human respiratory system. Also, write their functions. [5 MARKS]

Make a
sketch of the human nerve cell. What function do nerve cells perform?

Where does the partly-digested food go after it leaves the stomach?

Mention any two drawbacks in classifying organisms under the old two kingdom classification.

Sponges have a cell aggregate body plan with pores all over their body. To which phylum do they belong?

One can see many seeds germinating in wild during a rainy season. Choose the most appropriate reason/s.

What is soil pollution ?

What is the role of villi in digestion

Question 18

Match the column A with the column B

$\begin{array}{cc}\left(A\right)& \left(B\right)\\ \left(a\right)\text{Catla}& \left(i\right)\text{Bottom feeders}\\ \left(b\right)\text{Rohu}& \left(ii\right)\text{Surface feeders}\\ \left(c\right)\text{Mrigal}& \left(iii\right)\text{Middle-zone feeders}\\ \left(d\right)\text{Fish farming}& \left(iv\right)\text{Culture fishery}\end{array}$

Question 26
Fill in the blanks

(a)___disease continues for many days and causes ___ on body.
(b)___disease continues for a few days and causes no longer term effect on body.
(c)___is defined as physical, mental and social well-being and comfort.
(d) Common cold is___disease.
(e) Many skin diseases are caused by____.

The given illustration represents various unicellular organisms.

In the given illustration, the organisms that belong to Kingdom Monera are labelled

Prokaryotic cells do not have

Electrical impulse travels in a neuron from

The organisms that help in the transfer of pollen grains are called _____.

What are the characteristics of mitochondria?

Question 5
Under which of the following conditions is a person most likely to fall sick?
(a) when she is recovering from malaria.
(b) when she has recovered from malaria and is taking care of someone suffering from chicken-pox.
(c) when she is on a four-day fast after recovering from malaria and is taking care of someone suffering from chicken-pox.
Why?

___ is a reproductive hormone that plays a role in the activity of mammary glands.

In the diagram of a bean seed shown alongside, some parts are indicated by alphabets; Choose the answer in which these alphabets correctly match with the parts they indicate.

What is peculiar about sex organs in bryophytes?

State and explain any 4 exceptions to cell theory. (Each 2 marks)

Antibodies and Antitoxins are special ___ present in body fluids.

What do you understand by the term tetrapoda ? Name two classes belonging to tetrapoda.

Which of the following are correctly matched:

i. Fats - Oils
ii. Vitamins - Cereals
iii. Carbohydrates - Fruits and Vegetables
iv. Proteins - Pulses

Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following. Which cells are least likely to be replaced by new cells?

How many cows can be impregnated from a semen of single bull ?

The chitinous scrapping organ present in the mouth of a mollusc is known as

Select the part of the excretory system where urine is stored.

How do
plants and animals help each other in exchange of gases in the
atmosphere?

Which of the following statement is correct?

Rhizobium, Azotobacter and blue green algae (BGA) are biofertilizers. Consider the following statements:

Which of the above statements is/are correct?

Amoeba does not require any respiratory pigment to transport oxygen. The possible reason could be ___

Identify the process on the basis of given characteristics.

(1) Uses oxygen and glucose.

(2) Results in loss of biomass

(3) Catabolic process

Which type of blood cells fight infections?

Question 24

One of the following is not an Annelid



(a) Nereis

(b) Earthworm

(c) Leech

(d) Urchins

Why are viruses exception to cell theory