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When the first set of PARENTS crossed then the produced GENERATION is said to be F1 generation.

When the PROGENY formed after crossing between first set of parents CROSSES with F1 individual then the formed generation is said to be F2 generator.
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here F stands for filial. This concept was proposed by Gregor John Mendel. He is ALSO known as father of Genetics.
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the attached file will help you to understand better about F1 and F2 generation.
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hope it will help you...
best of luck...

Meat, fish, and POULTRY are the best SOURCES of VITAMIN B-12. They’re also good sources of PROTEIN and other B vitamins. Here’s a list of options to CONSIDER:

beef
veal
elk
chicken
turkey
lamb
pork
cod
tuna
bison
herring
oyster
crab
In fruits there is no vitamin b12

I THINK ur ANSWER is ZINC ..

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It is called STRUCTURAL and FUNCTIONAL unit of life because it has the to synthesise all the material REQUIRE for cell SYNTHESIS

It is very useful for soil.
green MANURE is the TYPE of soil which have so MANY minerals that is good for plants.

I THINK MAY be CHINA

A course of food SELECTED with REFERENCE to a particular STATE of HEALTH; prescribed allowance of food; regimen prescribed

Viviparous Definition. An animal that is viviparous gives birth to developed live YOUNG. ... FISH, amphibians, reptiles, and mammalsall have viviparous members, while NONE of the group are exclusivelyviviparous. Developing the youngviviparously appears to be a derived trait from OVIPAROUS ANIMALS.

A REFLEX arc is a neural PATHWAY that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the SPINAL cord. This allows for faster reflex actions to OCCUR by activating spinal motor neurons without the delay of routing signals through the brain.

Plant cells have walls, so CYTOKINESIS cannot proceed with a cleavage furrow. Instead, during telophase a cell PLATE forms across the cell in the location of the old metaphase plate.

During telophase, membrane-enclosed VESICLES derived from the Golgi apparatus migrate to the center of the cell where the metaphase plate used to be and fuse to form a cell plate.Eventually, the growing cell plate fuses with the EXISTING plasma membrane, producing two daughter cells, each with its own plasma membrane.A new cell wall forms between the two MEMBRANES of the cell plate.

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It's a simple blood TEST that lets your doctor measure how MUCH ammonia is in your blood. BACTERIA in your gut and in your cells create ammonia when your body breaks down PROTEIN. Ammonia is a waste product. Your liver turns ammonia into a chemical calledurea.


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Pitcher plant is an INSECTIVOROUS plant. when an insect arrives it opens its lid and it get entangled in its HAIR. Then some DIGESTIVE juices are secreted to digest the food.

Endocrine glands are glands of the endocrine system that SECRETE their products, hormones, directly into the blood RATHER than through a DUCT. The major glands of the endocrine system include the pineal GLAND, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.

The major glands that make up the human endocrine system include the:

hypothalamus.

pituitary gland.

thyroid.

parathyroids.

adrenal glands.

pineal body.

reproductive glands (which include the ovaries and testes)

pancreas.

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Male gametes are found INSIDE tiny pollen grains on the anthers of flowers. Female gametes are found in the ovulesof a flower. 

The male gametes of angiosperms CONSIST of two sperm cells within a pollen grain or a pollen tube. They are derived from a single generative cell, which is formed as the smaller cell by unequal cell division in the microsporeafter meiosis.

The OVARY of the plant produces the female ovule, or egg cell. The malesperm cell is generally encased by some sort of enclosure, like a pollen grain. This allows the egg and sperm cells to stay moist and SAFE from destruction. The complexity of the different types of gametes will be seen shortly.

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Mesosomes are part of the STRUCTURE of the plasma membrane. You'll find them lining the cell wall. They are clumped and FOLDED together, to maximize their surface area. This is important because it is NEEDED for cell respiration, which is a function of the mesosomes.

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The brain stem is MADE up of the MEDULLA, the Pons and the Midbrain. The medulla relays motor and sensory impulses between the brain and spinal cord. It helps to regulate HEART beat, breathing (the pons helps this too), blood vessel size, swallowing, vomiting, COUGHING, sneezing etc. Basically the medulla is just ONE section of the brain stem.

HIII......

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HERE IS YOUR ANSWER:------

EXTERNAL RESISTANCE HAS TO BE LEAST FOR DRAWING MAXIMUM CURRENT FOR A CELL.


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The hormone is Oxytocin but PITUITARY is not responsible in releasing this.The Foetal Ejection REFLEX, which causes little Uterine contractions. These cause an increase in blood levels of the hormone Oxytocin, which causes stronger contractions and HELPS in parturition.

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Basically when air fills our alveoli, by the process of diffusion, only oxygen in the air is taken into the blood stream while the other GASES along with the WASTE CO2 is EXHALED. So you do breathe innitrogen, but it is exhaled as it is by the body.

It's because MANY people have several DISEASE like HIV which can TRANSFER to another PERSON by blood that's why

The nurse should place the STETHOSCOPE on the extended MIDCLAVICULAR line to ASSESS the renal arteries for the presence of bruits.

It is an imaginary line that can be found from your trunk to the mid-portion of your CLAVICLE.

Fertilizers are SUBSTANCES USED to add nutrients to the soil to promote soil fertility and increase plant growth. Since salt content is one of the most CRITICAL characteristics of CHEMICAL fertilizers; they are expected to be harmful to agriculture in the long RUN as salts are harmful for plants as well as soil.

Hydra

Is the answer

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They can MAKE THIER own CHARECTERS

Gastric JUICE contain Enzymes and an acid that is HCl which maintain the pH of STOMACH. when the secretion of HCl increase causing acidity then NaHCO3 is used as antacid to maintain pH INSTOMACH. Small intestine receive the juices coming from liver, PANCREAS and of it own.

EXPLANATION:

the aquatic animals can survive WITHIN a narrow range of pH range this high acidity of water can ENDANGER the LIVES of aquatic animals to PREVENT the fish from being killed caco3 in which water neutralizes the acid that came from acid rain

If medium has LESS WATER SOLUTION then the cell will LOOSE the water by Osmosis. Such a surrounding solution is called Hypertonic Solution. This is because the cell looses water by osmosis because it has more concentration of water than its surroundings.

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Is your QUESTION correct

i DONOT KNOW whether it is correct or wrong


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By VEHICLES and CARS

If it occurs in bread it will appear LIKE BLACK COLOURED substance called bread mould. which is caused by spirogaira. You can then IDENTIFY that it is spirogaira..

Answer:

The spore containing sori of a FERN are usually found on the underside of their leaves.

Plants reproduce in different ways. They MAY have seeds, which are produced by the flower, they may multiply in the ground due to rhizomes, or they may have SPORES. Ferns are one of the plants that use spores to reproduce.

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Both are unisexual organisms....
DNA of cimpanzee and HUMAN being is similar about 95%
both are mammels
both are SOCIAL animals
both are VIVIPAROUS