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Label the parts A,B,C and D for the given image regarding bile duct and pancreatic duct opening into duodenum:

Describe kingdom Protista

Question 6

On the basis of the issues raised in this chapter, what changes would you incorporate in your life-style in a move towards a sustainable use of our resources?

Question 80

Explain the three pathways of the breakdown in living organisms.

Define adolescence. [2 MARKS]

All of the following statements are true regarding the "cell theory" except

Which of these muscles are striated and voluntary?

Predict the direction of net movement of water molecules in the picture below:

Write two important characteristics of:

(1) Mollusca

(2) Phanerogams

(3) Pteridophyta

(4) Bacteria

(5) Reptilia

(6) Protista

____ helps in the protection of mucosa from HCl

In angiosperms, functional megaspore develops into____

Question 19
Which of the following organelles contain DNA in them?

(a) Endoplasmic reticulum
(b) Golgi apparatus
(c) Mitochondria
(d) Lysosome

Stage two example each of:

1. Fodder Crops

2. Varieties of honey bee

Choose the correct order of muscle contraction from starting to completion.

The pressure variations are turned into electrical signals by

During a performance, if a dancer wants to stop her dancing, which muscles will execute this decision?

Question 38

Give any four factors necessary for a healthy person.

.The type of pollination between two different flowers of the same plant is called ___

Which ion is essential for muscle contraction?

Azolla is used as a biofertilizer because:

Question 9

Where do bees store honey?

Question 7

Suggest three measures to protect ourselves from lightning.

In which Era were flowering plants abundant?

Colouration of the skin is due to the pigment named ___contained in the cells of the malphighian layer.

(क) हर्ष और कनक छोटे होने पर भी समुद्र की लहरों में कैसे तैर सकते थे?

(ख) हर्ष का पिता क्या काम करता था?

(ग) कनक छोटे-छोटे शंखों की मालाएँ बनाकर क्यों बेचती थी?

(घ) मंजरी को कनक क्यों नहीं भाती थी?

(ङ) मंजरी ने कनक को अपना खिलौना क्यों दे दिया?

'T' in DTP vaccination stands for

Complete
the crossword with the help of clues given below.

Across

1. This is
necessary for photosynthesis.

3. Term
for component present in the cytoplasm.

6. The
living substance in the cell.

8. Units
of inheritance present on the chromosomes.

Down

1. Green
plastids.

2. Formed
by collection of tissues.

4. It
separates the contents of the cell from the surrounding medium.

5. Empty
structure in the cytoplasm.

7. A group
of cells.

(a) Define complex permanent tissue.

(b) Name the conductive tissues?

(c) Write the components of xylem and phloem.

Define green manure. Give one example.

Among the following which is the major cause of crop failure in India?

What is the significance of health?

Among the following, which is the excretory product in fishes?

Evolution is defined as the:

Across

1. This is necessary for photosynthesis.

3. Term for component present in the cytoplasm.

6. The living substance in the cell.

8. Units of inheritance present on the chromosomes.

According to the passage, which of the following morphogenetic determinants are present in the unfertilized egg cell?