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What is the best method of watering the fruit plants

Answer in brief.

A) why should we conserve biodiversity?

B) protected forests are also not completely safe for wild animals. why?

C) some tribals depend on the jungle. how?

D) what are the causes and consequences of deforestation?

E) what is the Red Data Book?

F) what do you understand by the term migration?

Q 1 - What are the functions of different organelles in a cell ?

Q 2 - Described stepwise how you would make a slide of an onion peel and observe it under a microscope ?

Which of the following receptors are present on the finger tips?

(a) What is meant by kharif crops ? Give two examples of kharif crops.

(b) What is meant by rabi crops ? Give two examples of rabi crops.

Proving P(1) to be true is known as _______ .

Islets of Langerhans secrete which of the following hormones?

Forests provide us with all except:

Half kg of flour is mixed with sugar and warm water, a small amount of yeast powder is added and knead to make soft dough. What do you observe after two hours?

Which is a better method of irrigation:drip irrigation or sprinkler system?

In a life cycle of butterfly major changes occur within

Flagellin is

Which one is essential fatty acid

What is desertificationand how it is caused?

A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?

The minerals involved in water-splitting reaction during photosynthesis are

Regarding the assertion and reason choose the right option.
Assertion [A]: Warm and moist environment can enhance the rate of decomposition.
Reason [R]: Anaerobic condition can enhance the rate of decomposition.

Why should food grains be stored at temperatures below 30 degree C?

The branch of botany dealing with study of algae is called as_________

What is the cell theory? Who proposed it? [5 MARKS]

Some diseases can spread by direct contact. Which of the following diseases is an example of this type?

The method of reproduction in humans is:

Which of the following is a structure present in all eukaryotic cells and is called the brain of the cell?

The organelles which provide energy for all the activities of a cell are:

Find the correct match of both the columns:

Microorganism Utility

i) Rhizobium a) Baking of bread

ii) Lactobacillus b) Preparation of antibiotic

iii) Yeast c) Biological nitrogen fixers.

iv) Penicillium d) Curd formation

What is full form of BCG?

Which of the following are characteristics of an amoeba?

Which cells have specific receptors that can receive hormones?

Which of the following are characteristics of the organisms included in domain Archaebacteria?

The members of Rhodophyceae algae are red in colour even though they have both chlorophyll a&b. This is due to the presence of a pigment called

What are the main postulates of the cell theory?

Explain that decomposers are important

Chordae tendineae are the tendons that connect______with the cardiac muscles.

Who discovered cells in the slices of cork?

Mosquito is a vector that carries disease then why it is not infected itself

The given passage has numbered blanks. Find out the word which completes the blank appropriately.

Generally, a disaster ____(1)____ in significant loss in social, psychological and economic aspects. It not only ____(2)____ to structural damages, but also leaves families torn apart, children orphaned, livelihoods destroyed and communities traumatised.

Non-structural factors such as lack of responsiveness of government officials and ineffective leadership are mainly ____(3)____ for any disaster mismanagements. India is ____(4)____ to a variety of natural and man-made disasters. Strong and effective emergency management has been a felt ____(5)____ in all corners of the world. Effective policies play a ____(6)____ role in mitigating the impact of disasters and reducing likely losses of life and property. Economic resources are important for any disaster management. Yet, it has been ____(7)____ that economic resources did not necessarily translate into greater investment in this domain as there is no ____(8)____ of issues that demand governments attention and resources. Disaster management has ____(9)____ acquired importance in the agenda of governance, unless there is a major natural or man-made disaster. The major shortcomings observed in Indian disaster management, along with their probable solutions, need to be discussed on an ____(10)____ basis.

Find out the appropriate word which fits the 6th blank.

On a sample of rice, iodine test was performed in two ways and the result was recorded as given below.

$\begin{array}{cc}\text{PROCEDURE}& \text{Result}\\ 1.\text{Rice + lodine}& \text{Blue black colour}\\ 2.\text{Rice + Saliva (3-4 minutes) + lodine}& \text{Blue black colour}\end{array}$

Select the incorrect option from the following:

Which of the following are desirable characteristics in poultry?

The presence of starch is identified by __________

Human is the union of a human egg and sperm, usually occurring in the ampulla of the uterine tube. How many nuclei are present in each zygote?