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The human body SENSES temperature changes through specialized nerve endings called thermoreceptors, located just beneath the skin. These receptors are distributed throughout the body and are constantly transmitting temperature information to the brain. A decrease in temperature activates cold receptors, and an increase activates warm receptors. Thermoreceptors can also respond to specific chemicals. For example, menthol activates cold receptors, which explains the chilling sensation you might feel after brushing your teeth or using an analgesic cream. Capsaicin, a CHEMICAL found in chili peppers, has been shown to activate warm receptors, causing the familiar red-hot burning and sweating reaction that accompanies a SPICY meal.

Cold receptors primarily react to temperatures ranging from 68 to 86˚F, while warm receptors are activated between 86˚F and 104˚F. At extreme temperatures—below 60˚F and beyond 113˚F—the temperature signal is accompanied by a sensation of pain. Weirdly, researchers have discovered that at temperatures greater than 113˚F, some cold receptors can also fire. This phenomenon, known as paradoxical cold, has puzzled scientists for decades. No one is quite sure why the effect happens, since it doesn't seem to offer an evolutionary or adaptive benefit, says Barry Green, director of the John B. Pierce Laboratory and professor of surgery at Yale University School of Medicine. Today researchers are considering a wide array of interpretations of the STRANGE sensation.

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ANSWER:

1)in the SHADE . RIGHT answer .

EXAMPLE of NATURAL CLONING is IDENTICAL TWINS

Answer:

mixed gland that produces the gametes (SEX CELLS) and sex hormones of an ORGANISM. In the FEMALE of the SPECIES the reproductive cells are the egg cells, and in the male the reproductive cells are the sperm.

Explanation:

Biotic factors such as pests, insects and DISEASES reduce the crop production. ... WEEDS also reduce crop productivity by competing with the main crop for NUTRIENTS and light. SIMILARLY, abiotic factors such as temperature, wind, rain etc. AFFECT the net crop production.

Answer:

MAGNITUDE of RESULTANT FORCE F1 and F is ROOT 300

ANSWER:

a). zero

b). direction

c). DOWNWARD s

Explanation:

Sucrose Molecule. Sucrose (C12H22O11) is the CHEMICAL name of table sugar. Sucrose is a DISACCHARIDE; each molecule CONSISTS of two "simple" sugars (a GLUCOSE and a fructose), called monosaccharides.

Answer:

TEMPLATE strand :-

• This strand PARTICIPATE in m-RNA synthesis.
• It has 3' - 5" polarity.
• It contains genetic information.

Coding strand :-

• This strand does not participate in mRNA synthesis.
• It has 5' - 3" polarity
• It does not contain genetic information.

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Explanation:

Heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants. The smaller of these, the microspore, is male and the LARGER megaspore is female.

singnificance of Heterospory

The zygote develops into the FUTURE sporophyte. - The evolution of the seed habit is related to the retention of the megaspore. - Heterospory is THUS considered an important step in evolution as it is a precursor to the seed habit. - Heterospory evolved first in pteridophytes such as Selaginella and Salvinia.

Two example of hetrosporic plant

Selaginella and Salvinia are two examples of heterosporous pteridophytes. These pteridophytes consist of two types of spores, large spores that germinate to PRODUCE female gametophyte and small spores germinate to produce male GAMETES.

ANSWER:

SORRY dont know about UR SPIRIT

1)all living ORGANISM are MADE up of cell

1) CELLS are basic unit of life

3) cell arise from pre EXISTENCE cells

these the POINTS of the cell theory proposed by three scientists

Explanation:

Physical properties of protoplasm:-

The contractility of protoplasm is important for the absorption and removal of water as they generally occur in protoplasm. 3. Viscosity: It is the most important property of the protoplasm by which it exhibits three main phenomena, i.e., Brownian movement, amoeboid movement and cytoplasmic streaming or cyclosis.

Chemical properties of protoplasm:-

Protoplasm is composed of a MIXTURE of small molecules such as ions, AMINO acids, monosaccharides and water, and macromolecules such as NUCLEIC acids, proteins, lipids and polysaccharides. In eukaryotes the protoplasm surrounding the CELL NUCLEUS is known as the cytoplasm and that inside the nucleus as the nucleoplasm.

Paper should be saved because the are made from tress. For making papers 1000 of TREES are cut down EVERY day.

1) DOUBLE sided printing to save paper

2) No overprinting

3) Re use SCRAP paper

4) Unsubscribe to JUNK mail

ANSWER:

CAPILLARIES have SMALLEST diameter.

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Answer:

2 is the INCORRECT OPTION

EXPLANATION:

Because EARTHWORM is a bisexual organism..

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ANSWER:d

Explanation:because REPRODUCTION is DONE in UTERUS.

A will be the RIGHT ANSWER that is ESTROGEN

Answer

BILE juice is produced by liver and it is stored in GALL BLADDER ..

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♥️____________________________

A. Pollen is right answer

The yellow POWER is CALLED pollen and the stick that HOLDS it is known as stamen.

♥️____________________________

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Answer:

SEX determination on the BASIS of Fertilization are of three types :-

1. Progamic -

Sex is determined before Fertilization

eg - drone in honey bee

2. Syngamic -

Sex is determined during Fertilization

eg - most of plants and animals

3. Epigamic -

Sex is determined after Fertilization

eg - Female in honey bee

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Explanation:

The food of sycon is small minute BACTERIA, DIATOMS, protozoans etc. The food particles COME into the sponge ALONG with water current.

Explanation:

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➡️ A) Measles.

➡️Airborne diseases are the infections spread by airborne TRANSMISSIONS including CHICKENPOX, Anthrax, Influenza, Measles, SMALLPOX, Cryptococcosis and TUBERCULOSIS.

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ANSWER:

this is the DIAGRAM..,..................

Answer:

Gene discovery is the process of identifying genes that contribute to the development of a trait or phenotype . ... They also TRY to find the genes that contribute to MANY other traits. Gene discovery BEGINS with clearly defining a trait of interest and DETERMINING if that trait has a genetic and/or environmental basis.

Explanation:

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from this we can CONTINUE our GENERATION

ANSWER:

chicken pox

Explanation:

This disease OCCURS only once in lifetime because after attack of its causing AGENT chickengunya we get immune for it but some people MIGHT get it again but it is very rare.

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Answer:

Cytoskeleton :-

An elaborate network of FILAMENT PROTEINACEOUS structure present in the cytoskeleton is COLLECTIVELY referred to as the cytoskeleton . The cytoskeleton in a cell are involved in many functions such as mechanical support, motility and maintenance of the shape of cell.

Microtubule :-

Microtubule is composed of Tubulin.

In plants microtubule often found ASSOCIATED with the cell wall . During cell division these microtubule form Spindle fibers.

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Answer:

nutrition in SYCON is BACTERIA ,DIATOMS, and MANY more protozoans ETC

ANSWER:

The CORRECT OPTION is (4) THREE

ANSWER:

I DON'T KNOW

EXPLANATION:

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SORRY BRO

EXPLANATION:

Heterostasis is a medical term. It is a neologism coined by Walter Cannon intended to connote an ALTERNATIVE but RELATED MEANING to its lexical sibling HOMEOSTASIS, which means 'same state'.

Answer:

1 CARDIAC MUSCLES rythmic CONTRACTION of our heart

ligament. 3,

Answer:

Gametophytes are the STAGE which PRODUCES sex cells in PLANTS and algae that undergo alternation of generations. The MALE and female sex cells combine to produce offspring.

The gametophytes in angiosperms are cells and are embedded within the SEXUAL organs of the flower.

The female gametophyte develops within the ovule The male gametophyte develops within the anther.

⭐️ ANSWER :-

EXAMPLES of non- edible mushrooms include Gymnopilus spectabilis, or BIG Laughing GYM mushroom.

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Answer:

Sex-limited CHARACTER :-

These character are present in one sex and absent in another sex. But their genes are present in both the SEXES and their expression is DEPEND on sex hormone.

Example :- Secondary SEXUAL characters ---> These genes located on the autosomes and these genes are Present in both male and female , but effect of these are depend upon presence pr absence of sex hormone.

For example :- Genes of beard - moustache EXPRESS their effects only in the absence of male hormone - Testosterone .

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Fungi can be good to eat, like some MUSHROOMS or foods made from YEAST, like bread or SOY sauce. ... Scientists use fungi to make antibiotics, which doctors sometimes use to treat bacterial infections. Fungi also help to decompose LOTS of different organic material, from leaves to INSECTS!

ANSWER:

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Explanation:

jdkfkffifj

djkdjdjdjdenje

Answer:

When you skip a meal or GO a long time without eating, your body goes into SURVIVAL mode,” says Robinson. “This CAUSES your cells and body to crave food which causes you to eat a lot. We usually tend to crave unhealthy FOODS and all attempts at eatinghealthy go out the door. When you are that HUNGRY, anything goes.”....

ANSWER:

because hyacinths ORE LIGHTER than WATER.

ANSWER:

as it SHOWS the resemblance of love and CARE of that time

Answer:

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ANSWER:

the angio spermis of MALE ONES

ANSWER:

HYPERTONIC SOLUTIONS have LESS WATER ( and more solute such as salt or sugar ) than a cell. Seawater is hypertonic.

Answer:

Plasma is the main component of blood and consists mostly of water, with proteins, IONS, nutrients, and wastes mixed in. Red blood cells are responsible for carrying oxygen and carbon dioxide. White blood cells are PART of the immune system and function in immune response.

Blood is considered a connective tissue for two basic reasons: (1) embryologically, it has the same origin (mesodermal) as do the other connective tissue TYPES and (2) blood CONNECTS the BODY systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes.

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Answer:

A chemical substance is a form of matter having constant chemical composition and characteristic properties.[1][2] A chemical substance cannot be separated into its constituent ELEMENTS by physical separation methods, i.e., WITHOUT breaking chemical bonds.[3] Chemical substances can be simple substances[4], chemical compounds, or ALLOYS. Chemical elements may or may not be included in the definition, depending on expert viewpoint.[4]

Chemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same RATIO of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, in practice, no substance is entirely pure, and chemical purity is specified according to the intended use of the chemical.

Chemical substances exist as solids, liquids, gases, or plasma, and may change between these phases of matter with changes in temperature or pressure. Chemical substances may be combined or converted to others by means of chemical reactions.

Forms of energy, such as light and heat, are not matter, and are thus not "substances" in this regard.

ANSWER:

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