Explore topic-wise InterviewSolutions in .

question a is correct answer

It is aGreen substance in producers that traps light energy from the sun, which is then used to combine carbon dioxide and water into sugars in the process of photosynthesisChlorophyllis vital for photosynthesis, which helps plants get energy from light.

Plantscan demonstrateanalogousstructures, such as sweet potatoes and potatoes, which have the same function of food storage. HomologusOrgans in plants:Homologous organsare thoseorganswhich have the same basic structural design and origin but have different functions.

option(1)- From Y- chromosome analysis his father can be identified and mDNA analysis his mother can be found out. Because these two types of DNA are inherited from father and mother respectively.

sssriluiuolopibifo9fI pigokgijgogooogjhju

green plant make their own food with the help of a carbon dioxide water minerals in the presence of sunlight so then I called autotrophic nutrition is called autotrophic nutrition

which deseases are spread by touch kiss hug contaminated food etc this deseas called infectious desease

Infectious diseasesaretransmittedfrom person to person by direct or indirect contact. Certaintypesof viruses, bacteria, parasites, and fungi can all causeinfectious disease. Malaria, measles, and respiratory illnesses are examples ofinfectious diseases.

Modes of Disease Transmission:-

Direct Contact. This involves direct body surface to body surface from one animal to another or from an animal to a human.

Indirect Contact or Fomite. This involves contact between a susceptible animal and a contaminated inanimate object (fomite) such as equipment, clothing or surfaces. ...

Droplet. ...

Airborne. ...

Vector.

Cytoplasm. cytology. Cytoplasm, the semifluid substance of a cell that is external to the nuclear membrane and internal to the cellular membrane, sometimes described as the nonnuclear content of protoplasm. In eukaryotes (i.e., cells having a nucleus), the cytoplasm contains all of the organelles.

Write short notes on the following.CytoplasmNucleus of a cell

Cytoplasm: It is a fluid that fills the cell and occurs between the plasma membrane and the nucleus. Cell organelles such as mitochondria, ribosomes, Golgi bodies, etc. are suspended in thecytoplasm. ...

Nucleus of a cell: The nucleus is a spherical structure generally present at the centre of a cell.

chronic conditionis a human healthconditionordiseasethat is persistent or otherwise long-lasting in its effects or adiseasethat comes with time. The termchronicis often applied when the course of thediseaselasts for more than three months.

A hypertonic solution contains a higher concentration of solutes compared to another solution.

Chronic disease : Diseases that are lasts for a long periods of are called chronic disease .hypertonic solution: If the medium has a lower concentration of water then the cell meaning that is very concentrated solution . The cell will lose water by osmosis such a solution is known as hypertonic solution

Physical fitness : It is the ability of an individual to carry out his daily routine without getting tired and having extra amount of energy to meet any kind of unforeseen emergency.Wellness : It is the ability to live life fully, with vitality and meaning. It is dynamic and multi-dimensional. Wellness incorporateshave derived, to their full benefit. They may need to modify their habits and lifestyle for better hygiene.•Health Education is of great importance for everyone, since it provides knowledge about personal and environmental hygiene. People learn to keep their body and surroundings clean and clear from dust and germs. This helps in preventing any communicable diseases.•Health education provides awareness about the communicable diseases, their prevention and cure. This helps in controlling the spread of diseases like Malaria, AIDS, Swine flu, Tuberculosis and more.•Health education helps us to become aware of the dietary requirements of our body, and what one needs to intake in appropriate quantities. The caloric intake depends on age, sex, and nature of work of a person. School children are given nutritious diet under the scheme ‘mid day meal’ to meet the required balanced diet.•Health Education helps detect diseases at an early stage. Physical deformities/ diseases/like poor eye sight, hearing disabilities, malnutrition may be detected at an early stage. Once detected in time, people can be informed about corrective methods.•Postural correction can help avoid a lot ofproblems like back pain, hunched back, knee joints pain, etc. Corrective posture and regular exercises help us a lot.physical, emotional, spiritual, intellectual, interpersonal, social and environmental dimensions.Physical fitness and wellness is required for proper growth and development. It enables the body’s physiological systems to function more efficiently and smoothly. Physical fitness is not only one of the most important keys to a healthy body but also the basis of dynamic and creative intellectual activity.(i)It improves the quality of life. In our daily life a physically fit person can manage theroutine work efficiently and without getting fatigue.(ii)It helps in the prevention of cardiovascular diseases. A physically fit person is less prone to coronary heart diseases.(iii)It improves the efficiency of cardiovascular system.(iv)Helps in harmonious growth and development.(v)Fulfils proper nutritional requirement.(vi)It helps in better management of stress and tension.(vii)Delays the aging process.(viii) Quick recovery after injury or illness. Recovery from fatigue is also faster and quicker.(ix)Improvement of motor abilities. Our strength, speed, flexibility, endurance, and coordination are improved to a great extent.(x)Better quality of work. It regulates and improves overall body functions. Response becomes more accurate therefore less wastage of energy.(xi)Better functioning of system leading to good health and optimum development of body.(xii)Attain good shape, size, structure and controlled weight. We can also remove postural deformity through it.

Physical fitness : It is the ability of an individual to carry out his daily routine without getting tired and having extra amount of energy to meet any kind of unforeseen emergency. Wellness : It is the ability to live life fully, with vitality and meaning.

b) Cytokinins areplant hormoneswhich promote cell division inplants.They also help in breaking the dormancy in seeds and buds. The delay the ageing of leaves.Cytokinins promote opening of stomata . a)Abscisic acid (ABA) is aplant hormonewhichfunctionsmainly as a growth inhibitor.

The theory that the acquired traits are carried to the next generation was given by Lamarck.

✴ To prove this theory wrong, Weismann cut the tails of several mice but found that the tail-less mouse was never born.

✴ Thus , this proved that acquired traits are not inherited.

given an injection of a thyroxine

1. thyroid glandis an endocrine glandin your neck. It makes two hormones that are secreted into the blood: thyroxine2. pituitary gland secretes growth hormone, which regulates growth, metabolism and body composition.3. pancreas secrets insulin that work in tandem to control the balance of glucose in the bloodstream.

1 Hormone secreted by thyroid gland is Thyroxine.2 Plant hormone is Auxin.

1. Holozoic nutrition is a method of nutrition that involves the ingestion of liquid or solid organic material, digestion, absorption and assimilation of it to utilize it. It includes taking in the complex substances and converting them into simpler forms.2. Nutrition in amoeba is holozoic.3. It engulfs the food particle with the help of pseudopodia

The walls of the alimentary canal have the same four basic layers, (also known as tunics) —1) Mucosa2)Submucosa 3) Musclaris externa4) SerosaEach layer contains a certain tissue type that plays a crucial role in the breakdown of food.

Holozoic nutrition is a type of heterotrophic nutrition that is characterized by the internalization and internal processing of gaseous, liquid or solid food particles. Protozoa, such as amoebas, and most of the free living animals, such as animals, exhibit this type of nutrition.

The gastrointestinal tract is an organ system within humans and other animals which takes in food, digests it to extract and absorb energy and nutrients, and expels the remaining waste as feces. The mouth, esophagus, stomach and intestines are part of the gastrointestinal tract.

Digestion is a processwhich starts from the mouth as soon as the food is chewed and broken in to thepieces. Small intestine is the foremost site for digestion. In this segment,the digested food particles are also absorbed using villi which then transportinto blood into various part of the body for cellular needs.

Breaking down of complex substances or food into simpler forms with the help of various digestive organs.

Digestion is the process in which the ingested food is broken down to simpler substances as it passes through the alimentary canal.The alimentary canal is made up of: mouth, oesophagus, stomach, small intestine and large intestine.When the food is ingested, it mixes with the saliva in the mouth and passes towards the oesophagus which takes it to stomach. stomach has a mixture of digestive juices like hydrochloric acid and digestive enzymes which help digest the food. then food moves to small intestine which receives enzymes from liver amd helps in further digestion. then food moves to large intestine where villi absorbs essential nutrients.

The 4 major functions of the large intestine are:

reabsorption of water andmineralionssuch as sodium and chloride

formation and temporary storage offaeces

maintaining a resident population of over 500speciesofbacteria

bacterialfermentationof indigestible materials.

The 4 major functions of the large intestine are recovery of water and electrolytes, formation and storage of faeces and fermentation of some of the indigestible food matter by bacteria. The ileocaecal valve controls the entry of material from the last part of the small intestine called the ileum

The large intestine has 3 primary functions: absorbing water and electrolytes, producing and absorbing vitamins, and forming and propelling feces toward the rectum for elimination. By the time indigestible materials have reached the colon, most nutrients and up to 90% of the water has been absorbed by the small intestine. The role of the ascending colon is to absorb the remaining water and other key nutrients from the indigestible material, solidifying it to form stool. The descending colon stores feces that will eventually be emptied into the rectum. The sigmoid colon contracts to increase the pressure inside the colon, causing the stool to move into the rectum. The rectum holds the feces awaiting elimination by defecation.

Mendel's dihybrid cross proofs that the traits are independently inherited. He took two traits of pea plants to check this out. Round and yellows peas which are dominant characters (RRYY) and green and wrinkled peas which are recessive characters (rryy).

After cross he got RrYy in F1 which showed round and yellows peas as phenotype. when these RrYy progenies were crossed, the gametes are formed with as many combinations as possible. In this case 16 types. So the two traits, shape and color of peas are not connected to each other cause all possible combinations are formed. So they are independently inherited.

Inherited traitsare traits that are passed down from parents or ancestors. They are in the genetic make up of the organism. For example, hair color, eye color, bone structure.

Acquired traitsare traits that are not passed genetically from one organism to another. They are skills, memories or knowledge

Vestigial organs are organs of the body which are smaller and simpler than those in related species. They have lost, or almost lost their original function. ... But one type of snake – the boas – have vestigial rear legs and pelvis. The human vermiform appendix is another example.

Presence of genes on chromosomes in male and female gametes, together decide whichtraitwill beexpressedin the progeny. In all organisms genes are responsible for transfer oftraitsfrom parents to progeny. Every characteristic is linked with two type of genes.

The pigment thatgiveshuman skin,hairand eyes theircolor.

MELANIN is the 100% correct answer

melanin is correct............................

Melanin is the right answer

Melanin is the correct answer

pegment is the world ok

Melanin is the correct answer of the given question.

Melanin is the correct answer.

Melanin is the correct answer

melanin is the correct answer.

melanin is the right answer

ENDOSPERM DEVELOPMENT IN ANGIOSPERMS

Endospermdevelops from the triploidprimary endospermic nucleus(PEN).

ThePENdivides and redivides bymitosisto form a tissue calledendosperm.

Endosperm grows faster than the embryo and gets surrounded around the embryo.

In some plants, endosperm is completed utilized by the developing embryo and as a result there is no endosperm in the mature seeds. This type of seed without endosperm is called nonendospermic (exalbuminous). Example:Ground nut, Pea.

In some plants, endosperm is partially utilized by the developing embryo and as a result there is endosperm in the mature seeds. This type of seed with endosperm is calledendospermic (albuminous). Example:Maize, Castor

Embryo sac

Thefemalegametophyte offlowering plants, which produces the twofemale gametes– the egg cell and central cell – for double-fertilization by the two sperm cells of themalegametophyte (pollen grain).

Option a) phycoerythrin is the pigment that gives red algae its color.

chlorophyll answer c is the correct answer

phycoerythrin the answer above qustion

Option a) phycoerythrin

option (a) phycoerythrin

Answer is phycoerythrin

(a)is the correct answer

a)phycoerythrin is the correct answer

Secondary nucleus is also known as (c)definitive nucleus.

and :- (c) definitive nucleus

option d = primary endosperm nucleus

Instead of using the air conditioning when it gets hot, turn on the fan. It will only take about an hour to cool down your house, saving you money and water.

2. Buy recycled paper products as opposed to “virgin” paper products. Recycled paper requires far less water than brand new paper production.

3. Insulating your pipes will not only save you money in energy costs, you won’t waste water when you’re waiting for it to heat up.

4. If you accidentally drop an ice cube, don’t throw it down the sink, use it to water a house plant.

5. Collect the water that you run while waiting for the water to reach your desired temperature and use it to water plants. This same idea applies for shower and bath water too!

Different drainage problems, includingpuddling, pooling, saturated soil, and even undirecteddownspout water, can destroylandscapingand turn a backyard into a swamp. It creates moisture and mold problems and can damage home foundations; drainage is aseriousconcern when there is a problem.

जलोद्भिद(=जल+उद्भिद = जलीय पौधे / Aquatic plants या hydrophytes या aquatic macrophytes) वेपादपहैं जो जलीय पर्यावरण में रहने एवं विकसित होने के लिये अनुकूलित हैं।

यह जल में अथवा अति आर्द्र भाग में ही विकसित होता है। इसका तना प्रायः लम्बा और मुलायम होता है जिसमें लकड़ी के रेशे की कमी पायी जाती है। इसकी जड़ उथली तथा पत्तियां लम्बी और पतली होती हैं।केलाइसका उत्कृष्ट उदाहरण है।

X→443K conc.H2SO4Y ( unsaturated compound)Z is hydrogen (Colourless gas)

X, Y and Z are alcohol, alkene and hydrogen respectively.

Suppose X is ethanol,it gives alkene on reacting with conc. H2SO4

C2H5OH (X)→443Kconc.H2SO4 C2H4(Y)

2C2H5OH→Na2C2H5O-Na++ H2(Z)

Role of sulphuric acid: It is used as a dehydrating agent in the above reaction.

Energy available to Lion ---100JLet x be the energy available to Deer.10% of x =100Jso x =1000JSo deer has received 1000J of energy.Let Y be the energy available to GrassThen grass will receive 10%of Y=1000JY=10000JHence 10,000 joules of energy is available to producers

a) neurons....

...

no it's wrong

By the ten percent law20,000*10*100=2000(to the plant)

2000*10/100=200(to the deer)

200*10/100=20(to the lion)please like the solution 👍 ✔️👍

1. Cerebrum 2. Synapse (the point of contact between two neurones is called synapse)

CerebrumSynapse(junction of two neurons)

Thecell membrane(also known as theplasma membrane(PM) or cytoplasmicmembrane, and historically referred to as the plasmalemma) is a biologicalmembranethat separates the interior of allcellsfrom the outside environment (the extracellular space) which protects thecellfrom its environment.

Humans cannot digest cellulose because they do not possess the enzymes required to digest cellulose in their gut. Our gut has enzymes which digest starch.

As you can see from the above picture, cellulose has beta-acetyl bonds and starch has alpha-acetyl bonds. Humans do not possess the enzymes needed to break down the beta-acetyl bonds. In fact no mammal has those enzymes produced by the body.

TheCell membranesurrounds all livingcellsand is themost important organelle, there is also a similarplasma membranethat surrounds all theorganellesexcept for the ribosome. ... The hydrophobic layer acts as a barrier to all but the smallest molecules and effectively isolating the two sides of themembranes.

Thecell membranecontrols the movement of substances in and out ofcellsand organelles. In this way, it is selectively permeable to ions and organic molecules.Cell membraneseparatescellfrom outside materials Ifcell membranegetdamagedthencellmay destroy