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Purkinje fibres supply impulses to:

In roses, the method commonly used to produce new plants is

Apiculture refers to:

Microorganism used successfully in bioremediation of oil spills is a species of __________.

When a cross is made between two parents with respect to a single character, it is called_______.

A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits - blood group A or O is dominant ? Why or why not ?

The cells which are responsible for regeneration in an animal are known as ………………………..

Explain mechanisms of sex determination in human being.

Making use only of substances chosen from those given below:

Give the equations for the reactions by which you could obtain sulphur dioxide.

Which of the following technique is used to cure a disease by correcting defective genes?

Discontinuous variations are:

Q58) Union Minister for Health and Family Welfare announced on the occasion of the Good Governance Day, 4 new Information Technology-based initiatives to provide citizen-centric health services. The initiatives include three applications, namely, Kilkari, Mobile Academy and M-Cessation and a dedicated toll free number 1800-11–6666 which will provide round the clock counselling and treatment support services for TB patients. Which of the following features are true about Kilkari?

1) It will be an IT-enabled tool to help tobacco users to quit tobacco

2) Built on a helpline concept, it will register beneficiaries on the basis of a missed call

3) The counseling would be done through a two-way SMS process, the Minister informed

Code:

Can we sperate oxygen from Carbon Dyoxide?

(a) Why is small intestine in herbivores longer than in carnivores ?
(b) What will happen if mucus is not secreted by the gastric glands ?
(c) What causes movement of food inside the alimentary canal ?

(a) What are heterotrophs? Give one example of heterotrophs.
(b) What is the difference between autotrophic nutrition and heterotrophic nutrition?

Scientists believe that all life originated in :
(a) the sea
(b) the soil
(c) the ground
(d) the air

Fill in the blanks
(a) Mitosis occurs in our ..... cells.
(b) Mitosis produces two daughter cells whereas meiosis produces ...... daughter cells.
(c) Meiosis occurs only in ..... cells.
(d) Modern humans have 46 chromosomes. Their sperms and eggs will have......chromosomes each.
(e) During the pairing of chromosomes in meiosis, the ...... chromosomes come to lie side by side.
(f) The.......(s) are surrounded by radiating rays and termed as aster.

The jaws of the whales are modified into __ to sieve the water and trap minute planktonic organisms.

One of the following is not a constituent of blood. This one is :
(a) red blood cells
(b) white blood cells
(c) sieve plates
(d) platelets

Select the correct structure of the sentence.
N = noun phrase; V = verb phrase; Adj = adjective phrase; p = prepositional phrase
This is beautiful!

The term Central Nervous System refers to:

Sodium, water and phosphate reabsorption is maximum in

What is the name of the system of glands which produces hormones?

Thyroxine controls ___ in frogs and the development of ___ and ___ during embryonic development of other vertebrates. Thyroxine production requires the presence of ___ in the diet.
Select the correct sequence of words to complete the above passage.

What is the role of potassium and sodium in transportation of impulses?

A and B are the two systems of control and coordination in the human body. The messages in system A are transmitted in the form of chemical substances C which travel comparatively slowly through the blood stream. The substances C are made in tissues D present in the head and trunk of human body. The messages in system B are transmitted very quickly in the form of electrical impulses through fibres E. The effect of messages transmitted by system B usually lasts for a much shorter time as compared to those transmitted by system A.

(a) Name the system A. What does system A consist of ?

(b) Name the chemical substance C.

(c) What is tissue D ? Name any five such tissues in the human body.

(d) Name the system B. What does system B consist of ?

(e) Name the fibres E.

(f) State whether system A controls the working of system B or system B controls the working of system A.

What is the function of 'pons' in the brain?

In chloroplasts, chlorophyll is present in the______

Which of the following organisms exhibit asexual reproduction by the process of budding?

Cytokinin was discovered by

Genetically engineered bacteria are being used in the commercial production of_______.

What is an allele? And how is a dominant trait is identified for example between tall and dwarf the dominant trait is tallness thats ok but how the dominant trait is identified please answer this briefly

Menstrual cycle

The process of transcription involves:

The right kidney is lower than the left kidney, since it has to accommodate a particular organ. Which organ is it?

Name the male and female gametes in animals.

Background radiation are

How do our lungs know which gas to inhale or exhale from a number of gases present in the atmosphere ?

Which of these diseases may be caused by drinking polluted water?

why do stomata are mostly present in the lower part of epidermis ?

(a) State whether the following statements are True (T) or False (F) ?

(i) Most transpiration occurs at midnight (T /F)

(ii) Transpiration creates a pull for upward movement of the sap. (T / F)

(iii) Wind velocity has an effect on transpiration. (T / F)

(iv) Voltmeter is an instrument used for measuring the rate of transpiration in green plants.

(b) Rewrite the false statements, in (a) above, in the correct form by changing either the first or the last word only.