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Constant linear growth curve for the arithmetic growth. 

Exponential (J shaped) growth curve for the geometric growth. 

Sigmoid growth curve related to distinct phases of growth.

Correct answer is (d) Buttercup

Correct answer is (c) Ca

Correct answer is (c) proteins

Correct answer is (a) yellowing of leaf

Correct answer is (b) Mg

Correct answer is (c) Cl

Correct answer is (a) respiration

1. Plants absorb minerals from the soil with their root system. 

2. Minerals are absorbed from the soil in the form of charged particles, positively charged cations and negatively charged anions. 

3. The absorption of minerals against the concentration gradient which requires expenditure of metabolic energy is called active absorption. 

4. The ATP energy derived from respiration in root cells is utilized for active absorption. 

5. Ions get accumulated in the root hair against the concentration gradient. 

6. These ions pass into cortical cells and finally reach xylem of roots. 

7. Along with the water these minerals are carried to other parts of plant.

Genu is anterior and splenium is posterior fold of corpus callosum.

(क) विंध्य हिमाचल यमुना गंगा, उच्छल जलधि तंरग।
(ख) किसी भी खिलाड़ी को चोट लगने पर उपचार की व्यवस्था करना।
(ग) मुख्य अतिथि के निरीक्षण पर आते समय ग्रुप लीडर ग्रुप को ‘सावधान’ का आदेश देगा।

सही विकल्प है (क) त्याग व बलिदान का

यदि कहीं राष्ट्रगान हो रहा हो और हम उधर से निकल रहे हों, तब हमें चुपचाप सावधान मुद्रा में खड़ा हो जाना चाहिए, जब तक कि राष्ट्रगान समाप्त न हो जाए।

राष्ट्र ध्वज में तीन रंग होते हैं। ऊपर केसरिया रंग, बीच में सफेद व नीचे हरा रंग होता है। केसरिया रंग त्याग व बलिदान, सफेद रंग शांति व सच्चाई और हरा रंग देश की हरियाली व खुशहाली दर्शाता है।

माचिंग वह क्रिया है जिसमें आदेशों को सुनते हुए ध्यान से मार्च किया जाता है, जैसेसेना व पुलिस के जवानों का कदम-ताल करते चलना व विद्यालयों में बच्चों की डिल। मार्किंग करते समय निम्न बातों को  ध्यान में रखना आवश्यक है- सावधानी की मुद्रा में खड़ा होना, गर्दन । सीधी व आँखें सामने की ओर खुली रखना। विश्राम की अवस्था में दोनों हाथ पीछे करना, हाथों और पैरों को ढीला छोड़ना। बात करना, पीछे मुड़ना व रूमाल प्रयोग करना मना होता है।

सही विकल्प है (क) ऑक्सीजन

सही विकल्प है (ख) अशुद्ध रक्त

सही विकल्प है (ग) बढ़ जाती है

नाक श्वसन तन्त्र का प्रवेश द्वार है। हम नाक तथा मुंह दोनों मार्गों से श्वास ग्रहण कर सकते हैं परन्तु नाक से ही श्वास ग्रहण करना उचित माना जाता है। नाक से श्वास लेने के लाभ निम्नलिखित हैं

⦁     नाक में उपस्थित बाल वायु में उपस्थित धूल के कणों व अन्य इस प्रकार की गन्दगी को . रोकते हैं जिसके कारण फेफड़ों तक पहुँचने वाली वायु गन्दगी रहित हो जाती है।
⦁    नाक से प्रवेश करने वाली वायु नाक तथा श्वसन नली आदि की रक्त केशिकाओं द्वारा गर्म की जाती है। अतः फेफड़ों को गर्म वायु उपलब्ध होती है। अधिक ठण्ड वायु फेफड़ों के लिए हानिकारक होती है।
⦁     सम्पूर्ण वायु नलिका की भित्ति श्लेष्मिक कला से मढ़ी होती है, जो कि वायु में उपस्थित जीवाणुओं एवं धूल-कणों को रोक लेती है। इस प्रकार फेफड़ों तक पहुँचने वाली वायु अनेक प्रकार के हानिकारक जीवाणुओं से मुक्त होती है।

एक स्वस्थ व्यक्ति प्रति मिनट 15-18 बार श्वास लेता है।

सही विकल्प है (ख) 15-18 बार

Small intercellular space between two successive neurons which is about 20¬30 nm in width, is called synaptic cleft.

Renin converts angiotensinogen to angiotensin.

The car salesman was flabbergasted - Main Clause

when the 17-year-old paid cash - Adverb Clause of Time

Hemodialysis is an artificial process of removing toxic substances from the blood in patients of kidney failure. The hemodialysis machine is therefore also known as the artificial kidney.

Antidiuretic hormone (ADH) is one of the hormones that efficiently monitors and regulates the functioning of the kidneys. Antidiuretic hormone released from the posterior pituitary, prevents wide swings in water balance, helping to avoid dehydration or water overload. ADH facilitates reabsorption of water by the distal parts of the kidney tubules and thereby prevents diuresis.

he was selling 1000 PCs a month – Main Clause

Within a year – Subordinate Adverb Clause of Time

ADH facilitates reabsorption of water by the distal parts of the kidney tubules and thereby prevents diuresis. Also, it prevents wide swings in water balance, helping to avoid dehydration or water overload. That is why it is called Antidiuretic hormone (ADH).

In prawns (crustaceans).

b) very small

The author of “The Snake and the Mirror’ fantasizes a fat woman as his wife since she would never be able to catch the doctor for his mistakes. She would not be able to run after him and he would be saved of all kinds of punishments. Thus, the author fantasizes a fat woman as his wife.

a) There was no electricity in the house.

The old man was living in a small side street in Mumbai. Some boys were playing cricke outside his house every night. They were very noisy. The old man Was unable to put up with that nuisance. So, he decided to talk to the boys.

Vaikom Muhammad Basheer is the writer of ‘The Snake and the Mirror”. He is a famous story teller from Kerala. The story is humorous. It tells us the experience of a young home doctor with a snake. The doctor was living alone in a small room with tiled roof. It was a hot summer night. He entered his room late at night. He tried to sleep but couldn’t. It was hot and he sat on a chair in front of a mirror and tried to read a book. There was a noise in the roof once or twice. But he did not bother about it because there were a lot many rats moving around. He started dreaming about marrying a fat, rich lady doctor.

Suddenly there was a ‘thud’ like sound. As he turned back to see what it was, there was a strong, long cobra coiling around his left hand with its hood wide open and just four inches away from his face. He at once became like a stone in fear. But his mind was active. As he was thinking of how to save himself, the snake saw its image in the mirror. It seemed that the snake was interested in its beauty. So it slipped down on to the table and moved towards the mirror. The doctor took this opportunity to run away from the room to a friend’s house. The following morning he came! back to his room with his friend. There was no snake. The room was almost empty. Some! thief had taken away all his belongings except a dirty vest. The doctor answers a listener’s question by saying he married a woman who was lean and an expert in running!

The old man promised to pay Rs. 25 a week to the boys for playing his favourite game near his house. After some time he paid Rs. 15 a week. Later he reduced it to Rs. 10. When he said he couldn’t pay more than Rs. 5 a week, the boys said it was too little for a week’s play. So they stopped playing cricket there

Cranial nerves (III) Occulomotor, (IV) Pathetic and (VI) Abducens originate from the midbrain.

Nissl’s granules are found in cyton and dendrites. These are formed of ribonucleic acid (RNA).

Bowmann’s Capsule of nephrons distributed is Cortex

1. There are three divisions of the brain, viz. forebrain (prosencephalon), midbrain mesencephalon) and hindbrain (rhombencephalon). 

2. Forebrain is divided into cerebrum (telencephalon) and diencephalon (thalamencephalon). Underdeveloped of factory lobes (rhinencephalon) can also be seen in the anterior region. 

3. Midbrain consists of corpora quadrigemina and crura cerebri.

4. Hindbrain has cerebellum (metencephalon) and brain stem. It is divided into pons varolii and medulla oblongata (myelencephalon).

 Cerebrospinal fluid.

It is the space between the double walls of the Bowman’s capsule.

1. Meninges are the connective tissue membranes that cover the brain and the spinal cord. There are three meninges, viz. dura mater, arachnoid mater and pia mater that cover the Central nervous system. 

2. The outermost tough, thick and fibrous meninx is dura mater. It is protective in function as it is attached to the inner side of the cranium. 

3. The middle, thin and vascular membrane formed of reticular connective tissue is called arachnoid mater. It carries out nutritive function and also gives protection to the brain. 

4. The innermost highly vascular and thin membrane is pia mater. It lies in contact with CNS. It is nutritive in function. 

5. There is subdural space between the dura mater and arachnoid mater. It is filled with serous fluid. 

6. Besides, there is a sub-arachnoidal space lying between arachnoid mater and pia mater. It is filled with cerebrospinal fluid.

Dura mater, arachnoid mater or membrane and pia mater are the meninges of human brain.

CSF is secreted by the choroid plexuses of brain and ependymal cells lining the ventricles of brain and central canal of spinal cord.

Blood capillaries seen around the renal tubules as continuation of the efferent vessel are Peritubular capillaries

Urea, salt, and water

Blood passes through the capillaries excess water and minerals enter the sweat glands. This is eliminated as sweat through the body surface.

Medulla oblongata controls involuntary functions like heartbeat, rate of respiration, secretion of saliva gut peristalsis, etc. Injury to the Medulla oblongata may result to the stop of heartbeat and breathing leading to death.

Correct option is (a) alveoli