Explore topic-wise InterviewSolutions in .

The Paris climate conferencetook place from 30 November to 11 December 2015.

On 12 December,the parties reached a new global agreementon climate change. The agreement presents a balanced outcome with an action plan to limit global warming'well below' 2°C.

The Paris Agreement entered into force 4 November 2016 after the conditions for ratification by at least 55 countries accounting for at least 55% of global greenhouse gas emissions were met. All EU Countries ratified the agreement.

The work on implementation tools for the Paris Agreement will continue at the COP23 conference in November in Bonn.

Communism:

Russia was the first country to establish a communist state. Soon after the revolution Communist International (Comintern) was formed for promoting revolutions on an international scale. The Revolution led to the formation of communist parties in many countries often with the support of the Comintern.

Socialism:Despite differences between communists and socialists, after the revolution socialism became one of the most widely held ideologies. Popularity of socialism helped mitigate discrimination based on race, colour and sex.

Democracy:

The Revoluti6n led to redefinition of democracy. Most people began to recognise that for democracy to be real, political rights without social and economic rights were not enough.

Economic Planning:

The idea of state playing an active role in regulating the economy and planning the economy, to improve the conditions of the people gained wide acceptance.Dignity of Labour:

'He that does not work, neither shall he eat', gained wide acceptance adding a new dignity to labour.

Internationalism:

Socialist ideas also helped in promoting internationalism by emphasising nations think beyond narrow self interests.

Imperialism:

The Russian Revolution hastened the end of imperialism. Russia after the revolution was the first country to openly support the cause of independence of all nations from foreign rule.

it's on earth it also vatavran

a. Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth's climate system and its related effects. Multiple lines of scientific evidence show that the climate system is warming. carbon dioxide is responsible for global warming.

b Clearing of forests(by cutting down forest trees)over a wide area is calleddeforestation. The variouscauses of deforestationare: ... These are theman made causes of deforestation.Someof the naturalcauses of deforestationare forest fires and severe droughts. Natural causesand effects ofdeforestation. Some examples ofdeforestation causesare forest fires, droughts, exotic animals, floods, climate change, and overpopulation of foreign animals. All of these add todeforestation. Forest fires burn trees in large amounts, leaving little to none left.

The answer is splicing

33.Minerals34.Homo35.the discharge of electrical charges due to lightning.

1)Hepatitis B causes due to Hepatitis virus. Hence option a2)Cloning

thanks😀😁😂

Yeast are single-celled microorganisms that are classified, along with molds and mushrooms, as members of the Kingdom Fungi.

Polio is caused by poliovirus

polio is caused by poliovirus

The two reasons for appearance of variation among the progeny formed by sexual reproduction is mentioned below :-

1. The progeny formed due to sexual reproduction has characteristics from mother as well as father. Hence because of this the characteristics differ and result in variation.

2. The genetic material is exchanged between chromosomes before forming of zygote. Deoxyribonucleic acid (DNA) exchange in the chromosome. This results in forming of variation in the progeny.

germination growing plantmake sure the result is correctthe upper part of the water is a and the small bowl of the water is B

By the late 1830s, botanistMatthias Schleidenand zoologistTheodor Schwannwere studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.

Virchow is credited with several very important discoveries. His most widely known scientific contribution is his cell theory, which built on the work of Theodor Schwann. He was one of the first to accept the work of Robert Remak, who showed the origins of cells was the division of pre-existing cells.

.Cell theory as understood today is based on two basic features:

(i) All living organisms are composed of cells and product of cell.

(ii)All cells arise from pre-existing cells.

a. Exhaustible resources are those resources which gets depleted after the continuous or non-judicious use by the humans . They take millions of years to renew againfor example;fossil fuels like coal,petroleum and natural gas.inexhaustible resources are those resources which cannot get depleted so quickly even after the continuous use by the humans for example;tidal energy, solar energy , nuclear or atomic energy , wind energy,geothermal energy, biogas etc..

b. Coal is a complex mixture of carbon, hydrogen and oxygen compounds. me nitrogen, sulphur and phosphorus compounds are also present in it. It is found in coal mines deep under the surface of earth. Story of formation : It is believed that millions of years ago, the ground below the forests was split open by natural forces such as earthquakes and volcanoes. The forests got buried under the surface of earth. Thus, the plants had no contact with oxygen. Successive layers of sediments sealed the buried plants. Over millions of year, these deposits were subjected to tremendous pressure and heat finally transformed them into coal.petroleum It is dark brownish to green coloured viscous liquid fossil fuel. It has strong foul smell due to the presence of sulphur containing compounds in it. It is commonly called as crude oil. The economy of a nation depends to a great extent on petroleum wealth, that's why petroleum is called the black gold.

Its name is derived from Latin words Petra (meaning rock) and O1eum (meaning oil). Thus, petroleum literally means "rock oil".

deoxyribonucelic acid (DNA) is genetic material

Ans :- deoxyribonucelic acid (DNA) is thegenetic material.

Mitochondriaandplastids are thetwo organellesthat contain their own genetic material. Both theseorganelleshave their own DNA and ribosomes.

thanks

Give you feedback by liking it

Ans :- MitochondriaHave DNA.Mitochondria andchloroplastshave striking similarities to bacteria cells. They have their own DNA, which is separate from the DNA found in thenucleusof thecell. And both organelles use their DNA to produce many proteins and enzymes required for theirfunction.

Option DRNAas theGenetic Materialin Viruses. Many viruses have been shown to contain ribonucleic acid (RNA) as theirgenetic material. One of the early examples is the Tobacco mosaic virus ( TMV ), shown in the 1930s to be composed of protein andRNA. No DNA is found in the particle.

plant virus option d

mitochondria and chloroplasts have own DNA

By improving lactation time period milk production can be increased.

Mitochondria and chloroplast have their own DNA

b) mitochondria and chloroplasts have their own dna

a)plastidb)i)carotene in fruit when ripe,chlorophyll when unripe(or chloroplast) ii)red/green iii)it imparts colour to the plantc)fruit is red,leaves are green

cell organelles are the structure inside a cell which are responsible for the well functioning of cell .

eg- mitochondria

cell organelles are the things contained by cell.

Marine ecosystem covers the largest surface area of the earth. Two third of earth is covered by water and they constitute of oceans, seas, intertidal zone, reefs, seabed, estuaries, hydrothermal vents and rock pools. Each life form is unique and native to its habitat. This is because they have adaptations according to their habitat. In the case of aquatic animals, they can’t survive outside of water. Exceptional cases are still there which shows another example of adaptations (e.g. mudskippers). The marine ecosystem is more concentrated with salts which make it difficult for freshwater organisms to live in. Also, marine animals cannot survive in fresh water. Their body is adapted to live in salt water; if they are placed in less salty water, their body will swell (osmosis).

Yes, haploid organisms have meiosis in their life cycle. Normally, diploid organisms only undergoes meiosis. But in some haploid organisms undergoing sexual reproduction, two haploid gametes fuse to form diploid zygote. The zygote then undergoes meiosis to produce haploid organism.

So, at the time of fertilization, these haploid gametes fuse to form diploid zygote which undergoes meiotic divisions and become haploid.

Themenstrual cycleoccurs due to the rise and fall ofhormones.This cycle results in the thickening of the lining of the uterus, and the growth of anegg, (which is required forpregnancy).The egg is released from an ovary around day fourteen in the cycle; the thickened lining of the uterus providesnutrientsto an embryo afterimplantation.If pregnancy does not occur, the lining is released in what is known as menstruation

Ans :- Themenstrualcycleoccursdue to the rise and fall of hormones. This cycle results in the thickening of the lining of the uterus, and the growth of an egg, (which is required for pregnancy). If pregnancydoesnotoccur, the lining is released in what is known as menstruation.

Themenstrualcycleoccursdue to the rise and fall of hormones. This cycle results in the thickening of the lining of the uterus, and the growth of an egg, (which is required for pregnancy). ... If pregnancydoesnotoccur, the lining is released in what is known asmenstruation.

The menstrual cycle is the regular natural change that occurs in the female reproductive system that makes pregnancy possible. The cycle is required for the production of oocytes, and for the preparation of the uterus for pregnancy.Themenstrualcycleoccursdue to the rise and fall of hormones. This cycle results in the thickening of the lining of the uterus, and the growth of an egg, (which is required for pregnancy). If pregnancydoesnotoccur, the lining is released in what is known asmenstruation.

Yes,we state that photosynthesis is the basic energy source for most of the living worldbecause theycantake in simple substances and prepare their own food.Not only that,they also pass it on to other members in the food chain.

Yes we can State that photosynthesis is the basic energy source for of the living world because ATM molecule is the energy source of plants which help to make food.if plants make food so they will grow and they will also give food for human and animals.

a) it realese the hormone testosteroneb) it helps in the production of sperms.

PHOTOSYNTHESIS IS CONSIDERED BASIC ENERGYSOURCE BECAUSE:

1.IT IS ESSENTIAL FOR AUTOTROPHIC NUTRITION

2.HETEROTROPHSARE DEPENDED ON AUTOTROPHS FOR THEIR NUTRITION

3.PHOTOSYNTHESIS IS ALSO A MAJOR PART OF FOOD CHAIN

4.IT RELEASES OXYGEN WHICH IS IMPORTANT FOR AEROBIC ORGANISMS

thanks

Photosynthesis is a process by which plants prepare their own food in the presence of water, chlorophyll, sunlight, and CO2. This process occurs mainly in the leaves of the plants. In some other plants, the stems also perform photosynthesis. Photosynthesis occurs in the chloroplast cells of the leaves. There are several factors affecting photosynthesis- its rate and efficiency

Factor Affecting Photosynthesis

Light

It is one of the major factors affecting photosynthesis. Photosynthesis cannot occur in the dark and the source of light for the plants is sunlight. Three attributes of light are important for photosynthesis:

Intensity:Photosynthesis begins at low intensities of light and increases till it is maximum at the brightest time of the day. The amount of light required varies for different plants. Photosynthesis uses maximum up to 1.5 % light in the process and so light is generally not a limitingfactor athigh intensity. However, the light becomes a limiting factor in low intensity because no matter how much water or CO2 is present, without light photosynthesis cannot occur. At high intensities, the temperature of the plant increases which leads to increased transpiration in the plant. This leads to the closing of the stomata which leads to a reduced CO2 intake. Thus, leading to a reduction and finally stoppage of photosynthesis. Therefore, excessive light inhibits photosynthesis.

Quality:Experiments conducted by Engelmann prove that the chlorophyll most effectively absorbs red and blue wavelengths from the entire spectrum of light. Thus, maximum photosynthesis occurs when the plant is exposed to the light of these wavelengths.

Duration:The longer the plant is exposed to light, the longer the process of photosynthesis will continue. As long as the temperature of the plant remains balanced, photosynthesis will occur.

5. Carbon di oxide, oxygen6. Chloroplasts.7. Photosynthesis8. Starch

carbon dioxide and oxygen

Photosynthesis is considered as basic energy source coz1. it is essential for auto-tropic nutrition2. hetrotrophs r dependent upon autotrophs for there nutrition3. it is also a major part of food chain4. it even releases oxygen important for all living beings

1)Inside a cell, numerous organelles function to remove wastes. One of the key organelles involved in digestion and waste removal is thelysosome.Lysosomesare organelles that contain digestive enzymes. They digest excess or worn out organelles, food particles, and engulfed viruses or bacteria.

2)They are small vesicles found around the cell. They have a single membrane that contains digestive enzymes for breaking down toxic materials in the cell. They differ from lysosomes in the type of enzyme they hold.Peroxisomeshold on to enzymes that require oxygen (oxidative enzymes).

3)Glyoxysomes are specialized peroxisomes found in plants and also in filamentous fungi. Seeds that contain fats and oils include corn, soybean, sunflower, peanut and pumpkin. As in all peroxisomes, in glyoxysomes the fatty acids are oxidized to acetyl-CoA by peroxisomal β-oxidation enzymes.

4)Ribosomesare acellstructure that makes protein. Protein is needed for manycell functionssuch as repairing damage or directing chemical processes.Ribosomescan be found floating within the cytoplasm or attached to the endoplasmic reticulum. ... Proteins are an essential part of allcells.

Single Membrane bound Organelles: Lysosomes, Peroxisomes, Vacuoles

The answer is option D

answer is option 4 lysosomes

Thethyroid glandis an endocrineglandin your neck. It makes two hormones that are secreted into the blood: thyroxine (T4) and triiodothyronine (T3). These hormones are necessary for all the cells in your body to work normally.

Thepituitary glandis a tiny organ, the size of a pea, found at the base of the brain. As the “mastergland” of the body, it produces many hormones that travel throughout the body, directing certain processes or stimulating otherglandsto produce other hormones.

Thepancreasis about 6 inches long and sits across the back of the abdomen, behind the stomach. The head of thepancreasis on the right side of the abdomen and is connected to the duodenum (the first section of the small intestine) through a small tube called thepancreaticduct.