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Percentage of nitrogen in Earth's atmosphere is:

The ankle joint is a _____

Select True or False in the following statements regarding photosynthesis and respiration.

1. Photosynthesis occurs only in the presence of chlorophyll.
2. Photosynthesis occurs at all time.
3. Respiration uses carbon dioxide and water.
4. In respiration carbon dioxide is released as end product.

According to unit membrane structure of cell membrane, its thickness is about ____ x 10${}^{-10}$ m.

Account for the current environmental crisis.

What is the name of gelatinous layer existing between two germ layer of Cnidaria?

Question 3
List any three human activities which would lead to an increase in the carbon dioxide content of the air.

What are centrosomes? Mention its function.

Which one is the part of the outer ear?

Which of the following methods helps us to overcome the crisis of environmental pollution caused due to chemical fertilisers/pesticides?

Cancer may be caused by exposure to ________

What is the yield of milk from Murrah buffalo ?

Are RBCs, WBCs and platelets suspended in the PLASMA of the bood?

The pea flower bear ________ androecium.

Name the types of muscle tissue

Q95. Recently Government of India has launched ‘Suvidha’, 100% oxo-biodegradable sanitary napkin. Consider the following statements with reference to Suvidha.

1. The sanitary napkin is made available at an affordable rate of Rs. 2.50 per pad.

2. It is launched under the Pradhan Mantri Bhartiya Janaushadhi Pariyojana (PMBJP).

Select the correct answer using the codes given.

Q1) what happens when a Rhoeo leaf cell is kept in water ?

Q2) name the biomolecule in the form of which chromosomes contain information for inheritence of features from one generation to another?

What is the principle of filtration?

What is osculum?

A__i__flower is divided into equal halves by any radial plane passing through its centre. Mustard and__ii__ are some examples of this kind of flower.

The information in which alternative completes the given statements?

What is the energy currency of the cell?

Which one of the following is the correct pairing of a body part and the kind of muscle tissue which moves it?

Where do we find areolar tissue? What are its functions? [2 MARKS]

What is the driving energy of the hydrologic cycle?

Why antibiotics beneficial to us? Name any two groups of organisms from which they are obtained?

The tip of the flower stalk expanded to form a cup-shaped ________.

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___ is the property by which biological systems maintain a stable internal environment.

In aerobic respiration, the complete breakdown of glucose occurs by the supply of __________.

Give four important functions of epithelial tissue. Name one specific place in the body where each function is carried out.

Name the national bird and national animal of India.

Entamoeba histolytica feeds on _______.

In the pelvic girdle of man A, B, C, D and E respectively represent;

How does a Cork acts as a protective tissue?

difference between different types of tissues

There are certain special conditions which are necessary prerequisites for the growth and development of corals. The condition that is not favourable:

From outer to inside, the sequence of three bones present, in the middle ear of humans is

Which bacteria fixes nitrogen in the soil ?

(a) Nitrobacter (b) Nitrosomonas
(c) Rhizobium (d) Clostidium

A mismatch in the following is

Which among the following options show a ball and socket joint?