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Which of the following is incorrectly matched?

Write in proper sequence the five major steps in the cultivation of the common edible mushroom.

When do you call a fruit as true fruit?

Differentiate between carrier and vector.

Identify the relationship between oxygen and carbon dioxide in maintaining life processes.

Which of the following hormone(s) is/are not produced by the pituitary gland?

Oliver and Ava have $7$ number cards.





Oliver wants to form a largest $7$ digit number using all the cards only once. The number formed is .

Explain.....

What part does stigma play in the process of fertilization

Give two structural characteristics of these voluntary muscles.

Identify the organ whose walls absorb water and salts from the undigested food.

Which of the following is/are the abiotic components in terrestrial habitats?

The 11th and 12th pairs of ribs are attached to the sternum.

Match the following.

$\begin{array}{cc}ColumnI& ColumnII\\ i.\text{Tendon}& a.\text{Hard connective tissue}\\ ii.\text{Ligament}& b.\text{Connect bone to muscle}\\ iii.\text{Cartilage}& c.\text{Connect bone to bone}\\ iv.\text{Bone}& d.\text{Flexible connective tissue}\end{array}$

Find out the organochlorines among the following:

Pneumatophores in mangrove plants are helpful in

Identify the part of the digestive system where finger-like projections called villi can be found.

In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?

Select what is not true of intestinal villi among following
(a) they possess microvilli
(b) they increase the surface area
(c) they are supplied with capillaries and the lacteal vessels
(d) they only participate in digestion of fats

Which system provides form and support to the body?

The large intestine absorbs ___.

Match the following list of animals with their level of organisation.

(a) Organ level i. Pheritima

(b) Cellular aggregate level ii. Fasciola

(c) Tissue level iii.Spongilla

(d) Organ system level iv. Obelia

Choose the correct match showing division of labour with animal example.

Given below are the steps to test the presence of proteins in a food item.

(i) Take a small quantity of the food item in a test tube, add 10 drops of water to it and shake it.

(ii) Make a paste or powder of food to be tested.

(iii) Add 10 drops of caustic soda solution to the test tube and shake well.

(iv) Add 2 drops of copper sulphate solution to it.

Which of the following is the correct sequence of steps?

(a) i, ii, iv, iii

(b) ii, i, iv, iii

(c) ii, i, iii, iv

(d) iv, ii, i, iii

How is oxygen replenished in nature?

Which part of the body is associated with the lacrimal bone?

What are Bowman’s capsule and glomerulus known as?

Explain various methods of fertilizer applications.

Treatment of snakebite by antivenom is considered as ______________ .

What is basic unit of classification?

What are the constituents of blood?