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The plant tissue responsible for the active growth of a plant is

Enumerate protein fibres of connective tissue.

Which of the following animals do not have bones?

In the given figure, choose the correct answer in which the alphabets are correctly matched with the parts mentioned.

Question 03(iii)
The number of nuclei present in a zygote is _______.

Which of the following does the trees produce that help us human beings live?

Identify the incorrect statement regarding cartilage.

Question 14

Factors responsible for the rapid spread of bread mould on slices of bread are

(i) large number of spores

(ii) availability of moisture and nutrients in bread

(iii) presence of tubular branched hyphae

(iv) formation of round shaped sporangia



(a) (i) and (iii)

(b) (ii) and iv)

(c) (i) and (ii)

(d) (iii) and (iv)

Which of the following is/are not characteristic of the plant cell?

Which among the following are plastids without pigments?

A structure which has been moved by a muscle cannot return to its original position without the action of another muscle. Such muscles causing opposing movements are called __(antagonistic muscles/ smooth muscles).

Select the correct option regarding cytokinesis in a cell.

Animal cells lack

How many types of muscles occur in animals?

Question 4
How are water and minerals transported in plants?

Discuss how water is replenished in sea.

Question 25

Match the following A and B

$\begin{array}{cc}\left(A\right)& \left(B\right)\\ \left(a\right)\text{Cattle used for tilling and carting}& \left(i\right)\text{Milk producing female}\\ \left(b\right)\text{Indian breed of chicken}& \left(ii\right)\text{Broiler}\\ \left(c\right)\text{Sahiwal, Red Sindhi}& \left(iii\right)\text{Drought animals}\\ \left(d\right)\text{Milch}& \left(iv\right)\text{Local breed of cattle}\\ \left(e\right)\text{Chicken better fed for obtaining meat}& \left(v\right)\text{Aseel}\end{array}$

Atmospheric air rushes in through trachea into the lungs due to ___.

Describe the biological method of weed control.

Match the following:
$\begin{array}{cccc}\text{A.}& \text{Zoophily}& 1.& \text{Pollination by birds}\\ \text{B.}& \text{Ornithophily}& 2.& \text{Pollination by insects}\\ \text{C.}& \text{Entomophily}& 3.& \text{Pollination by bats}\\ \text{D.}& \text{Chiropterophily}& 4.& \text{Pollination by animals}\end{array}$

Viruses are essentially made up of -

The most exploited nonrenewable resource is-

Name any one body part where ciliated epithelium is found in humans ? What is its function ?

Complete the following table by filling in the blanks 1 to 8.

$\begin{array}{c}OrganEnzymeFoodacteduponFinalproduct\\ 1Pepsin23\\ Mouth45Disaccharide\\ 67Maltose8\end{array}$

Which is the largest orgenelle of the cell?

Select the appropriate functions of lymph.

Meibomian glands are located at:

Imagine that a Social Worker comes to the abandoned farmhouse to find out what may have happened to the family. She makes the following observations in her note-pad

When I reached the farmhouse, I saw that the house was empty, which

____________. I wondered where they might have gone. __________________ the

owner was not a farmer, because of the boulders in the field and the leaky barn.

_______________ the family was poor, because I saw several sealed jars in the cellar.

Also _____________________ a woman lived there. It was obvious she had left in a

hurry. What was most touching was that the toys were scattered in the yard.

How does water get polluted? [2 MARKS]

Which organelle/s help amoeba capture food?

What is the function of a thykloid in a prokaryotic bacterium cell?

Which of the following microorganism is involved in nitrogen fixation?

Tusks are which type of teeth in an elephant?

Excitation – contraction coupling involves all except: