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ANSWER:

it is EASY you can do the SUM PROPERLY

Answer:109.4–120.7 km/h (68.0–75.0 mph)

Explanation Cheetahs are very fast there are other ANIMALS and birds FASTER than cheetah LIKE BRAZILIAN free-tailed bat, it is this the fastest animal in 2020

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HEART is MADE up of CARDIAC muscles.

They contract rapidly

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Answer:

the answer is 1) a

2)c

3)d

4)b

Explanation:

Answer:

The blood transports CO²comparatively easily because of its higher solubility. About 5-7% of carbon dioxide is transported, being dissolved in the plasma of blood. The carbon dioxide PRODUCED by the tissues, diffuses passively into the blood stream and passes into RED blood corpuscles and react with water to form H ² CO³The RBCs contain an enzyme carbonic anhydrase which accelerates this reaction. Therefore, when CO²Enters the RBCs carbonic acid is formed more RAPIDLY and in larger quantity than in plasma. 5% of the total CO²production is carried as carbonicacid.The oxyhaemoglobinHbo²of the erythrocytes is not basic. The study of oxygen-haemoglobin dissociation curve and the effect on it due to change in pH and CO² concentration, is a certain proof of acidic nature of oxyhaemoglobin.The chloride ions DIFFUSE from plasma into the erythrocytes to maintain ionic balance, when BICARBONATE ions diffuse out from the RBCs into the plasma, this is called as "Hamburger's phenomenon or chloride shift".

Thus, from the above discussion it is clear that A, C and E are true, B and D are false.

Therefore, the correct answer is option A.

Explanation:

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ANSWER:

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Explanation:

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Answer:

3. 2,3,5. is the very CORRECT PRECAUTION to USE CLINICAL THERMOMETER.

Answer:

The NEPHRON is the FUNCTIONAL unit of the KIDNEY. ... The renal tubule is a LONG, CONVOLUTED structure that emerges from the glomerulus

ANSWER:

CHROMOSOME....... DNA ..........

Answer:

In nuclear physics and nuclear chemistry, nuclear fission is a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter NUCLEI. The fission process often produces gamma photons, and releases a very large amount of energy even by the energetic standards of radioactive decay.

Nuclear fission of heavy ELEMENTS was discovered on December 17, 1938 by German Otto Hahn and his ASSISTANT Fritz Strassmann, and explained theoretically in January 1939 by Lise Meitner and her nephew Otto Robert Frisch. Frisch named the process by analogy with biological fission of living cells. For heavy nuclides, it is an exothermic reaction which can release large amounts of energy both as electromagnetic radiation and as kinetic energy of the fragments (heating the bulk material where fission takes place). Like nuclear fusion, in order for fission to produce energy, the total binding energy of the resulting elements must have a greater binding energy than that of the starting element.

Fission is a form of nuclear transmutation because the resulting fragments are not the same element as the original atom. The two (or more) nuclei produced are most often of COMPARABLE but slightly different sizes, typically with a mass ratio of products of about 3 to 2, for common fissile isotopes.

Most fissions are binary fissions (producing two charged fragments), but OCCASIONALLY (2 to 4 times per 1000 events), three positively charged fragments are produced, in a ternary fission. The smallest of these fragments in ternary processes ranges in size from a proton to an argon nucleus.

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ANSWER:

the erosion of SOIL is called soil erosion

the 3 ways to prevent are

• growing more plants
• use PESTICIDES in a RIGHT way
• give limited water

Explanation:

Photosynthesis is the process in which autotrophs such as GREEN plants use carbon dioxide and water in presence of sunlight to synthesize nutrients such carbohydrates in the form of glucose and release OXYGEN. HENCE oxygen is returned to the ATMOSPHERE by photosynthesis.

Plasmolysis is the process in which cells lose WATER in a hypertonic SOLUTION. The reverse process, cytolysis, can occur if the cell is in a HYPOTONIC solution resulting in a LOWER external osmotic pressure and a net flow of water into the cell.

Answer:

Friction is the force resisting the relative motion of SOLID surfaces, fluid layers, and MATERIAL elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact.

Advantages of Friction:

Friction is responsible for many types of motion. It helps us walk on the ground. ... ASTEROIDS are burnt in the ATMOSPHERE before reaching EARTH due to friction. It helps in the generation of heat when we rub our hands.

Answer:

The respiratory system is a biological system consisting of specific organs and STRUCTURES used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, DEPENDING on the size of the ORGANISM, the environment in which it lives and its EVOLUTIONARY history.

Answer:

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PETALS are modified LEAVES that surround the reproductive parts of flowers. ... Petals are usually accompanied by another set of SPECIAL leaves like structures called sepals, that collectively form the calyx and LIE just beneath the corolla. The calyx and the corolla together make up the perianth.

Live television is a television production broadcast in real-time, as events happen, in the present. In a secondary MEANING, it may refer to streaming television over the Internet. In most cases live programming is not being recorded as it is shown on TV, but rather was not rehearsed or edited and is being shown only as it was recorded prior to being aired. Shows broadcast live include newscasts, morning shows, awards shows, sports programs, reality programs and, occasionally, EPISODES of scripted television series.

Live television was more COMMON until the late 1950s, when videotape TECHNOLOGY was invented. Because of the PROHIBITIVE cost, adoption was slow, and some television shows remained live until the 1970s, such as soap operas. To prevent unforeseen issues, live television programs may be delayed, which allows censors to edit the program. Some programs may be broadcast live in certain time zones and delayed in others.

ANSWER:

TRANSPORT by ATP of cell by ENERGY utilisation for transportation

Explanation:

When cells express SPECIFIC genes that CHARACTERISE a certain type of cell we say that a cell has BECOME differentiated.

Once a cell becomes differentiated it only expresses the genes that produce the proteins characteristic for that type of cell.

Differentiated cells are IMPORTANT in a multicellular organism because they are able to perform a specialised function in the body. However, specialisation comes at a cost.

The cost is that the differentiated cells often LOSE the ability to make new copies of themselves.

Multicellular organisms must therefore retain some unspecialised cells that can replenish cells when needed. These unspecialised cells are called stem cells.

Answer:

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Explanation:

 Multicellular examples of algae include the giant KELP and brown algae. Unicellular examples include diatoms, Euglenophyta, and Dinoflagellates. Most algae require a moist or watery environment; hence, they are ubiquitous near or inside water BODIES.

Answer:Animals can be classified as either vertebrates or invertebrates. Vertebrates are animals that have a backbone inside their body. ... Invertebrates don't have a backbone. They either have a soft body, LIKE worms and jellyfish, or a hard outer CASING COVERING their body, like spiders and crabs.

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ANSWER:

PHOTOSYNTHESIS

Chlorophyll can make food the PLANT can use from carbon dioxide, water, nutrients, and ENERGY from sunlight. This process is called photosynthesis. During the process of photosynthesis, PLANTS release oxygen into the air.

Explanation:

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ANSWER:

which FOOD ITEMS?

EXPLAIN it PROPERLY

Explanation:

Adrenaline triggers the body's fight-or-flight response. This reaction CAUSES air passages to dilate to provide the muscles with the oxygen they need to either fight danger or flee. Adrenaline also triggers the blood vessels to contract to re-direct blood toward MAJOR muscle groups, including the heart and lungs. The body's ability to FEEL pain also decreases as a result of adrenaline, which is why you can continue running from or fighting danger even when injured. Adrenaline causes a noticeable increase in strength and performance, as well as heightened awareness, in stressful times. After the stress has subsided, adrenaline’s effect can last for up to an hour.

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Answer:

Deoxyribonucleic acid is a molecule composed of two polynucleotide chains that COIL around each other to form a double helix carrying genetic INSTRUCTIONS for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids. DNA or deoxyribonucleic acid is a long molecule that contains our unique genetic is a molecule that contains the instructions an organism needs to develop, LIVE and reproduce. These instructions are FOUND inside every cell, and are passed down from parents to their children.

Explanation:

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Answer:

The signs and symptoms of any disease DEPEND on the organ or TISSUES from the targets of the PATHOGENS that cause the infectious diseases. The pathogens damage the targeted organs or tissues which in turn GIVE rise to signs and symptoms. For EXAMPLE, if the lungs are the targets, then symptoms will be cough and breathlessness.

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Explanation:

ANSWER:

you breathe is around 78 percent nitrogen, so nitrogen enters your body with every BREATH. Because nitrogen is an important part of human health, it is unfortunate that the nitrogen people inhale gets immediately EXHALED. Animals, including humans, cannot absorb nitrogen in its gaseous form.

EXPLANATION:

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Answer:

Nitrogen is a major essential element for all organisms, and a constituent of proteins, nucleic acids and other indispensable organic compounds. Although highly abundant (about 78% by volume) in the air, its concentrations in SOIL, crust rocks and sea water are relatively low, and the availability of N is often a limiting factor for plant growth in natural habitats as well as agricultural crop production. Major forms of inorganic N in soil are nitrate and ammonium, which plants absorb from roots. In addition, some plants like LEGUMINOUS plants can fix atmospheric N 2 symbiotically in association with nitrogen-fixing soil bacteria, RHIZOBIA. Ammonium is a key component in the assimilation of nitrogen into organic compounds, whether the N is derived from ammonium absorption, nitrate reduction, or nitrogen fixation. The ammonium is incorporated initially into the AMIDE group of glutamine by glutamine synthetase, then into glutamate by glutamate synthase, after which the N is assimilated into various amino acids, proteins and nucleic acids.

Answer:

Well I would BELIEVE the weight comes from the bark and the leaves because during the 20 YEARS the molecules inside or cells multiplied adding weight each time also the WATER that it sucks up may even be it as well

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EXPLANATION:

Answer:

The WALLS of cork cells contain a CHEMICAL called suberin, which makes them impermeable to WATER and gases. Thus, cork cells prevent water LOSS from PLANTS and also make them more resistant to bacterial and fungal infection

Answer:

1.5 MICRONS

Explanation:

Size of the drawing = ACTUAL length of bacterium × MAGNIFICATION.

Size of drawing = 45 mm = 45× 10^-3 m

Magnification = 30000.

Actual length of bacteria =

= 1.5 micro METRES or microns.

Answer:

KAl(SO₄)₂·12H₂O

POTASSIUM alum, potash alum, or potassium ALUMINIUM sulfate is a chemical compound: the DOUBLE sulfate of potassium and aluminium, with chemical FORMULA KAl(SO4)2. It is commonly encountered as the dodecahydrate, KAl(SO4)2·12H2O.

ANSWER:

option C is the correct answer.

EXPLANATION:

because stomata are meant for TRANSPIRATION which CAUSES loss of water.So if stomata closes there is no loss of water..

ANSWER:

AI

Explanation:

Because he RAN more FASTER than A2

Answer:

A natural magnet is a magnet that occurs naturally in NATURE. Artificial magnets are magnets made by people. ... An example of a natural magnet is the lodestone, ALSO CALLED magnetite.

ANSWER:

(i) EXINE this is not PARTS of OVARY

(II)microphyle

Explanation:

ANSWER:

A=nitrogen the most 78%

B=carbon dioxide 0.04%

gas which SOLUBLE in water is oxygen

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We pee to extract all the waste materials from our body and to keep it clean....

If we don't pee our body will get FILLED up of waste of urinary bladder will be AFFECTED and our INTESTINE will also be affected....

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ANSWER:

(i) answer:-Stem cells differ from other kinds of cells in the body. All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long PERIODS; they are unspecialized; and they can give rise to specialized cell types.

(ii) answer:-The DESTRUCTION of cells in tissue is compensated by regenerating CAPACITY. The epithelial tissue is mechanical support to organ and has a good regenerating capacity. This makes them perfect for the capacity of the muscle tissue is very strong to heal and hence it heals naturally.

(iii) answer:-Given their unique regenerative abilities, stem cells offer new potentials for treating diseases such as diabetes, and heart disease. ... Research on stem cells continues to advance knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in ADULT organisms.

Explanation:

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ANSWER:

ZN(OH)2..................

Answer:

To grow mold on bread you will need to collect the following materials: a SLICE of bread (any kind), a sealable plastic bag, a spray BOTTLE, and WATER. You can USE any type of bread, but know that store-bought sandwich bread contains preservatives and will TAKE longer to grow mold. Fresh bread will grow mold faster.

The PLACES where BEES LIVE. ........

Answer:

hey mate...... here is your answer...

Explanation:

A language where you need to have a DEEP understanding of the hardware. Description.

Description is the right answer.

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Answer:

Nervous system cells are called neurons. They have THREE distinct parts, including a cell body, AXON, and dendrites. These parts help them to SEND and RECEIVE CHEMICAL and electrical signal

Explanation:

ANSWER:

A.Stomach

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ANSWER:

The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded PROTEINS, the plasma membrane is selectively permeable to ions and ORGANIC molecules and regulates the movement of SUBSTANCES in and out of cells.

Answer:

MONOCOTS can be defined as the PLANTS with the seed having only one cotyledon, and the plant is called as MONOCOTYLEDONS, while plants with the seed having two cotyledons are called as DICOTS, and the plant is called as DICOTYLEDONS.