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Give a detailed note on symbiosis and how it is beneficial for organisms? [5 MARKS]

The primary role of light in photosynthesis is to

what is intestinal juices ?

A person with blood group AB has

How do elephant living in the tropical rainforest adapt itself.

In the figure given below, label the part marked (i), (ii) and (iii).

Every day on streets, you must have noticed garbage cleaning people separating wastes into different categories like the wet waste, dry waste etc. What is this process called?

Ribosomes are attached to the surface of ___.

Forests are also referred to as :

Question 5 (a)
Tick the correct answer:
(a) In cockroaches, air enters the body through
(i) lungs
(ii) gills
(iii) spiracles
(iv) skin

1. Imagine you have a big garden. What would it look like? Draw a picture here.

2. What would you like to grow in your garden? Write three sentences giving the names of the flowers that you might like to grow in your garden.
1. In my garden I would like to grow ________________________.
2. In my garden I would like to grow ________________________.
3. In my garden I would like to grow ________________________.

Which of the following is correct about the major role of the circulatory system?

Which of the following method(s) help(s) in food preservation?

Choose the correct combination of labeling the molecules involved in the pathway of anaerobic respiration in yeast.

Although bile juice has not digestive enzyme, it is still considered to be very important during digestion of food. Give two reasons..!

Statements:

Some mangoes are fruits.

Some fruits are red.

All red are vegetables.

Conclusions:

I. No mango is red.

II. Some mangoes are red.

List a few diseases that are prevented by vaccination. [3 MARKS]

Question 43

Is ‘nutrition’ a necessity for an organism? Discuss.

Which of the following is incorrect match of animal group/life style/structure/function?

Consider the following taxonomic categories

(1) Class (2) Genus (3) Family (4) Order (5) Species (6) Division

In which of the following options, the above categories are arranged in ascending order?

Match the items given in column I with those in column II and select the correct option given below.



$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{A}& \text{Tricuspid valve}& \text{(i)}& \text{Between left atrium and left ventricle}\\ & & & \\ \text{B}& \text{Bicuspid valve}& \text{(ii)}& \text{Between right ventricle}\\ & & & \text{and pulmonary artery}\\ \text{C}& \text{Semilunar valve}& \text{(iii)}& \text{Between right atrium}\\ & & & \text{and right ventricle}\end{array}$

(a) In which jar, will the amount of $C{O}_2$ be the highest and why?

Do using computer have a bad effect on our brain?

This child is suffering from dust allergy. What are the symptoms of dust allergy?

Question 6 (b)

Fill in the blanks

b) The food synthesised by the plants is stored as __.

How can we classify plants based on their mode of nutrition? Explain. [2 MARKS]

Which of the following are healthy practices that help teenagers maintain proper personal hygiene?

Question 40

Where is the zygote located in the flower after fertilization?

Explain nutrition in plants

If a person faces a scary situation, his heartbeat increases. After a while, the normalcy is restored. The part of the nervous system which helps in restoring normalcy is ___.

Arrange the following in the correct sequence:

1. Urine enters the ureter.

2. Urine is stored in the urinary bladder.

3. Some substances in the initial filtrate are selectively reabsorbed.

Question 55

Match Group (A) with Group (B)



$\begin{array}{cc}Group\left(A\right)& Group\left(B\right)\\ \left(a\right)Autotrophicnutrition& \left(i\right)Leech\\ \left(b\right)Heterotrophicnutrition& \left(ii\right)Paramoecium\\ \left(c\right)Parasiticnutrition& \left(iii\right)Deer\\ \left(d\right)Digestioninfoodvacuoles& \left(iv\right)Greenplant\end{array}$

Mention five features of asexual reproduction. [5 MARKS]

The trachea bifurcates into two small branches which are known as