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ANSWER:

SCALES,, BACKBONE,CHEST.......

Germs are all around us, both in our environment and in our bodies. When a person is susceptible and they encounter a harmful organism, it can lead to disease and death.

Germs are all around us, both in our environment and in our bodies. When a person is susceptible and they encounter a harmful organism, it can lead to disease and death.The body has MANY WAYS of defending itself against pathogens (disease-causing organisms). Skin, MUCUS, and CILIA (microscopic hairs that move debris away from the lungs) all work as physical barriers to prevent pathogens from entering the body in the first place. 

Germs are all around us, both in our environment and in our bodies. When a person is susceptible and they encounter a harmful organism, it can lead to disease and death.The body has many ways of defending itself against pathogens (disease-causing organisms). Skin, mucus, and cilia (microscopic hairs that move debris away from the lungs) all work as physical barriers to prevent pathogens from entering the body in the first place. When a pathogen does INFECT the body, our body’s defences, called the immune system, are triggered and the pathogen is attacked and destroyed or overcome.

Answer:

Aim of the experiment:-

To prove that chlorophyll pigment in green LEAVES is necessary for the plants to prepare their carbohydrate (starch) food.

Requirements for the experiment:-

A well watered variegated leaf plant, beaker, water, Bunsen burner, mentholated spirit or rectified spirit or ethanol, iodine solution, a white porcelain tile.

Procedure for the experiments:-

A variegated leaf plant is taken for this particular experiment to prove the necessity of chlorophyll for photosynthesis. A variegated leaf is a leaf in which DIFFERENT patches of colors are present in a Croton or Coleus or Geranium plant. The place where green patches are present in the leaf, chlorophyll pigment is present while at the other color patches present in the leaf contain other pigments but not chlorophyll. Before starting the experiment to prove chlorophyll is necessary for photosynthesis an important step has to be carried out is known as De-starching. De-starching is a step in which the starch present in the leaves of the plant will be removed by keeping the variegated leaves plant in a dark room or closed cup-board for about 48 hours. This step is done to ensure that previously synthesized starch in the leaves get consumed up because photosynthesis doesn't occur at that time as the plant is kept in dark place.

After De-starching step the variegated leaf plant is kept in bright sunlight for about 6 hours. After this one of the variegated leaf is plucked out from the experimental plant. Then Iodine test is conducted for this experimental leaf to find out whether the leaf prepared starch through photosynthesis or not.

A variegated leaf plant taken to prove chlorophyll is necessary for photosynthesis

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Steps to be followed for Iodine test:-

The plucked out experimental leaf is immersed in boiling water in the beaker for few minutes so that the cells of the leaf will be killed and at the same time metabolic activities of the leaf cells will be stopped.

Now the boiled leaf is taken out from the beaker with the help of a forceps. It is then placed in a test tube containing rectified spirit or ethanol. Then the leaf is boiled in ethanol over a water BATH by keeping it in boiling water for about 10 minutes. The leaf dissolves its chlorophyll by boiling it in rectified spirit and then become pale-white.

Next the pale-white leaf is removed from the test tube by forceps and then it is washed in under warm water to make it soft.

Then this leaf is spread over a white porcelain tile and iodine drops were placed over at different parts of the leaf.

Result of Iodine test:-

Iodine is a purple colored reagent used to test the presence or absence of starch in the leaf conducted for photosynthesis process. In the presence of starch iodine solution will turn into blue-black color and in the absence of starch iodine added to leaf will turn into brown color.

In this experimental leaf, the part of the variegated leaf which contain green patches will give a positive test for starch i.e. iodine when added to this part of the leaf will turn into blue-black color. The reason for this is, this part of the experimental leaf containing green patches include chlorophyll and thus prepare starch through photosynthesis. Thus iodine added to this region will turn into blue-back color. But colored patches of variegated leaf doesn't include chlorophyll and thus don't prepare starch through photosynthesis. So iodine added in this region will change into brown color. Thus this experiment proves chlorophyll is necessary for leaves to prepare starch through photosynthesis.

Explanation:

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Answer:

RUMEN

Explanation:

Swallowed FOOD is partially DIGESTED in the Rumen. It is then carried BACK to the mouth for chewing in the form of cud.

ANSWER:

a........HOPE it HELPED you

Answer:

Br(Bromine)

Explanation:

Bromine is a chemical element with the symbol Br and ATOMIC number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to FORM a SIMILARLY coloured gas. Its properties are THUS intermediate between those of chlorine and iodine.

Symbol: Br

Atomic mass: 79.904 u

Atomic number: 35

Electron configuration: [Ar] 3d¹⁰4s²4p⁵

Electronegativity: 2.96

CAS ID: 7726-95-6

ANSWER:

Can't UNDERSTAND your QUESTION?

EXPLANATION:

BR is the RIGHT ANSWER.......

The oceans COVER 71% of the surface of the EARTH, so seafloor provides the largest AREA for those species that MOVE about on or are ROOTED to our planet's surface – a reasonable justification for the “largest habitat on Earth”

EXPLANATION:

Chlorophyll

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Explanation:

The STUDY of the history of clothing and TEXTILES traces the development, use, and availability of clothing and textiles over human history. ... Anthropologists believe that ANIMAL skins and vegetation were ADAPTED into coverings as protection from cold, heat and RAIN, especially as humans migrated to new climates

ANSWER:

cave

Explanation:

hyytsgfsyetsuwyyya7sus6whrays6

Answer:

While reptiles were the first to have eggs that could survive on land, birds gained an advantage when they DEVELOPED eggs that had a hard shell. They were STRONGER and could support the embryo inside through harsher conditions (LIKE rolling out of a nest).

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ANSWER:

WINTER

Explanation:

because dark COLORS absorb SUNLIGHT

Compact bone is most OFTEN used as an ivory substitute. CANCELLOUS bone, commonly found near the ends of long bones, has a sponge-like appearance and has much LARGER canals than SMOOTH compact bone.

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ANSWER:

its called rusting

When iron is exposed to MOISTURE or oxygen, oxidation OCCURS. During this CHEMICAL reaction, iron is converted into iron oxide.

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Explanation:

In a physical change, only the physical properties of a substance change and no new substances are FORMED. FREEZING of water is a physical change because only the physical STATE of water is CHANGED; i.e. water is CONVERTED into ice. Hence, freezing is a physical change

ANSWER:

HOPE this is HELPFUL

EXPLANATION:

आमतौर पर बगीचे में आत्म-बीज वाले पौधे शामिल हो सकते हैं:

बैंगनी।

मुझे नहीं भूलना।

स्नातक का बटन।

कालंबिन।

Alyssum।

कैलेंडुला।

Portulaca।

सूरजमुखी।

आपका दिन शुभ हो

ANSWER:

answer is OPTION (c) .

THANKS for asking a QUESTION

Answer:

A skeleton is the hard structure that protects the internal organs of a living thing. Skeletons can be inside the body or outside the body. In MAMMALS, which include humans, the skeleton is MADE of bones. ... The skeleton SUPPORTS the SKIN, muscle and tissue, and all the organs that are inside the body.

Answer:

Two of the most IMPORTANT properties of soils are their texture and STRUCTURE . By texture, we mean what soils are COMPOSED of and how this AFFECTS the way they feel and their cultivation

Answer:

b

EXPLANATION:

they are light WEIGHTED

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Explanation:

It comes from substances that leak out of blood capillaries (the smallest type of blood vessel). It HELPS BRING oxygen and nutrients to CELLS and to remove waste products from them. As new TISSUE fluid is MADE, it replaces older fluid, which drains towards lymph vessels.

ANSWER:

1. nodes
2. stomata
3. anther
4. energy
5. shoulder

Explanation:

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Answer:

NIGHT blindness is the inability to see well at night or in poor LIGHTS. it is not disease itself, but RATHER a symptoms of an underlying problem, usually a retina problem.

Answer:

BREATHING is a external PROCESS it occurs outside the cell membrane and ENERGY is not formed but RESPIRATION occurs inside the cell and energy is formed

Answer:

Explanation:

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ANSWER:

foetus

Explanation:

the STAGE of embryo in which all BODY PARTS can be DISTINGUISHED easily

Explanation:

Millipede Detritivore.

While decomposers break down dead, ORGANIC materials, detritivores—like millipedes, earthworms, and termites—eat dead organisms and WASTES. ... Decomposers FEED on dead things: dead plant materials such as leaf litter and wood, animal carcasses, and feces.

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have a nice day

good evening

Answer:

Sound waves are TRAVELLING VIBRATIONS of particles in MEDIA such as air, WATER or metal. So it stands to reason that they cannot travel through empty space, where there are no ATOMS or molecules to vibrate.

Answer:

A balanced diet is a diet that contains differing kinds of foods in certain quantities and PROPORTIONS so that the REQUIREMENT for calories, PROTEINS, minerals, VITAMINS and alternative nutrients is adequate and a small provision is reserved for ADDITIONAL nutrients to endure the short length of leanness.

PROVIDED:-

• Of what are WOOL fibers MADE ?

ANSWER:-

A). PROTEIN

ANSWER:

NAHI pata

Explanation:

ANSWER:

GREEN PLANTS are CALLED PHOTOAUTOTROPHS......

Answer:

Joe BIDEN

EXPLANATION:

VICE President is KAMALA HARRIS

Answer:

GREEN plants are CALLED "PRODUCERS"...

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Sorter's disease is a disease CAUSED by SHEEPS small feather that EJECT in our NOSE when we breath. This feather contains bacteria called as 'bacillus anthrac'which INFECTS us and this disease is caused.

Answer ⤵️

Plants and animals are the MAIN SOURCE of food for all the ORGANISMS on earth. Food obtained from animals is the main source of protein and include fish, milk, meat, poultry, and cheese. Whereas plants provide us with FRUITS and vegetables, which are an important source of fibres, proteins and carbohydrates.

Explanation:

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The PROCESSES of digestion include six ACTIVITIES:

ingestion, propulsion, mechanical or physical digestion, chemical digestion, ABSORPTION, and defecation. The first of these processes, ingestion, refers to the entry of food into the ALIMENTARY canal through the MOUTH.

ANSWER:

where are other OPTIONS.

ANSWER

FALLOPIAN tube

Explanation:

ANSWER:

SORRY MATE don't no the answer

Answer:

(i) The beginning of prophase is marked by the APPEARANCE of condensed chromosomes, each of which consists of two SISTER chromatids( the daughter DNA molecules produced in S phase). These newly REPLICATED DNA molecules remain INTERTWINED throughout S and G²,becoming UNTANGLED during the process of chromatin condensation

the EASY way to learn plant and animal cells is

you make TWO different song one for animal cell and other for plant cell .

song should be MADE using the names of parts in both the cell

and you just learn the song in musical way and SEE you will came to KNOW you have did it

ANSWER:

Once the WATER starts boiling, the temperature does not change, it remains at 100 °C during the TIME the water boils.

So graph (A) SHOWS the correct VARIATION of temperature with time.

ANSWER:

SORRY BRO don't no the answer

edited:-

OPTION b siso....

assertion is correct....

but reason is correct.....

but reason is not the correct EXPLANATION..

(EARLIER one was wrong.... pls do check)

ANSWER:

vvsm ZNS. ZNZ. snssmmsndndndkdjjdjdjfjdj

Explanation:

hhdnsnndnmdmdnnmjdbd

Honey starts as FLOWER nectar collected by bees, which gets broken down into SIMPLE sugars stored inside the honeycomb. The design of the honeycomb and constant fanning of the bees' WINGS causes evaporation, creating sweet LIQUID honey. Honey's color and flavor VARIES based on the nectar collected by the bees.

ANSWER:

SORRY......... .......... ............urhyrhrue i