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The pesticides need to be replaced because:

Which of the following are characteristics of the ribs?

Statement: We should eat balanced diet.

Reason: A balanced diet contains all the components of food in right proportion.

Term ‘hybridoma’ implies:

The backflow of faecal matter from the large intestine into the small intestine is prevented due to the presence of the

Petromyzon is a example of ………………

Without golgi appratus the formation of lysosomes can be affected why??

Q31. Consider the following statements

1. GOBAR-DHAN Yojana aims to focus on managing and converting cattle dung and solid waste in farms to compost, biogas and bio-CNG.

2. It was announced in 2017-18 budget speech.

Which of the above statement(s) is/are correct?

Robert Hooke was the first scientist who coined the term ‘cell’. Which cell did he observe under the microscope?

Which of the following is an example of ball and socket joint in the body?

Which one of the following is the correct matching of a nutrient mineral element and its one rich source ?

(a) Calcium -Potato

(b) Sodium - Citruis fruits

(c) Iodine - Dairy milk

(d) Potassium - Banana

Question 1
Who discovered cells and how?

Which of the following is not a symptom of Ascariasis?

Which of the following gives the correct order for food as it passes through the organs of the digestive system?

All organisms start life as a single cell called the ___ .

Which of the following is a unicellular organism?

Question 7
Mark the following statements as True or False. Correct the false statements.
(a) Oxygen breaks down glucose outside the cells of organisms.
(b) Frogs can breathe through their skin as well as lungs.
(c) Insects have spiracles on the lower surface of the body.
(d) Exhaled air has more percentage of CO₂ than inhaled air.

Mid brain is the ________ .

Which of the following methods can be used to control the growth of weeds on the fields?

Why are yeast cells used to make wines and beers? What do humans produce during anaerobic respiration? [2 MARKS]

Explain various effects of weeds on crop plants.

What is water cycle ? Give its other name.

Describe the important characters of mammals and birds. Give two examples of each.

Linnauus is considered as Father of Taxonomy. Name two other botanists known for their contribution to the field taxonomy.

Structure that carries urine out of the kidneys is

Statement 1: Carp is a bony fish

Statement 2: Roaches is a cartilaginous fish

Maximum starch is manufactured by

Why we invert the flasks during the test for heat production during respiration?

The anthers of the stamen produce a powdery material called pollen which consists of particles called __.

What is thermo regulation?

Which of the following is not a chordate?

Explain various types of irrigation systems in India. How can efficiency of applied water be increased in agriculture.

What we do get from cereals, pulses, fruits and vegetables ?

1. The plastid that imparts red colour to plants is xanthophyll.

2. Leucoplasts are colourless plastids.

Match the bones with the structure they are associated with

What is the vital capacity of lungs?

Identify the type of tissue

The end product of anaerobic respiration is __ instead of lactic acid as in the case of animals.

Per capita wet waste produced at home = _____________?

Who coined the term 'protoplasm'?

If there was no $C{O}_2$ in the earth’s atmosphere, the temperature of earth’s surface would be

Plastids in a plant cell are homologous to __ in an animal cell.

What is the chemical used to mitochondria in the lab

What are the different types of immunity and their sources?

Q1. If the organisation of a cell is destroyed due to some physical of chemical influence, what will happen?

What is the difference between being disease free and healthy?

Process of conversion of cartilages to bones during development is called_______________.