Birth-rate	Growth-rate
The number of live births per thousand persons during a certain period of time is called the birth rate.	The growth rate of population is expressed as a percentage during a certain period of time.
It is calculated for every 1000 persons for a year.	The growth rate of population is expressed as a percentage during a certain period of time.
A high birth-rate shows an increasing population.	When birth-rate is more than death rate, it shows a positive growth rate.

Given that The radius of the orbit = 42250 km Find out Speed if it takes 24 hours to revolve around the earth Solution Therefore, circumference of the orbit = 2*π*42250km = 265571.42 km Time taken for the orbit = 24 hours.. Therefore, speed of the satellite = 11065.4 km.h-1 The satellite orbits the Earth at a speed of 11065.4 kilometers per hour.

An artificial satellite is moving in a circular orbit of radish 42250 km. Calculate its speed if it takes 24 hour to resolve around the earth.

Cytoplasm is the liquid content inside the cell whereas protoplasm mean (cytoplasm+nucleus)

Answer is 1.65079365079

డగనడజ్జనజెఈజవేఋడ

Qutab Minar is a soaring, 73 m-high tower of victory, built in 1193 by Qutab-ud-din Aibak immediately after the defeat of Delhi's last Hindu kingdom. The tower has five distinct storeys, each marked by a projecting balcony and tapers from a 15 m diameter at the base to just 2.5 m at the top.

Hello Sanket

Hi Diksha

Sanskrit is the primary sacred language of Hinduism, and has been used as a philosophical language in the religions of Hinduism, Buddhism, and Jainism. Sanskrit is a standardized dialect of Old Indo-Aryan, originating as Vedic Sanskrit as early as 1700-1200 BCE.

Sanskrit is the primary sacred language of Hinduism, and has been used as a philosophical language in the religions of Hinduism, Buddhism, and Jainism. Sanskrit is a standardized dialect of Old Indo-Aryan, originating as Vedic Sanskrit as early as 1700-1200 BCE

3060, 3070 and 3000 respectively

what

NUTRITION Mode of nutrition --- On the basis of sources of energy 1. Photosynthesis autographs 2.Chemsynthedis autographs Then PHOTOSYNTHESIS Then INTERNAL STRUCTURE OF LEAF 1.Epidermis 2.Stomata 3.Gaurd cells Then CHLOROPLASTS Then EVENTS OF PHOTOSYNTHESIS 1. Absorption 2.Conversion 3.Reduction Then CONDITIONS NECESSARY FOR PHOTOSYNTHESIS 1. Sunlight 2. Chlorophyll Then RAW MATERIALS REQUIRED BY PHOTOSYNTHESIS 1. Oxygen 2. Water 3. Other materials Then SIGNIFICANCE OF PHOTOSYNTHESIS 1. Food 2. Oxygen Then HETEROTROPHIC NUTRITION 1. Holozoic nutrition 2. Saprophytic nutrition 3. Parasitic nutrition Then NUTRITION IN AMOEBA 1. Ingestion 2. Digestion 3. Absorption 4. Assimilation 5. Egestion Then NUTRITION IN HUMAN BEINGS HOPE ITS HELPFUL ??

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Outbreeding devices are the mechanisms/processes which the plants adapt to prevent self-pollination.
Outbreeding devices prevent the occurrence of self-fertilization in plants. The outbreeding devices are as follows:

1. Dioecism: Plant has either the male flowers or the female flowers so that self fertilization never occurs.

2. Dichogamy: It is the process of differential maturation of anther and stigma. When stigma becomes receptive before the anther dehiscence, it is called protogyny. When anther dehisces earlier than stigma becomes receptive, it is called protoandry.

3. Herkogamy: It occurs when stigma and anthers are prevented to come in contact separating the space. Either the style gets longer so that pollen cannot reach the stigma or the style gets shorter so that anther dehisce away from the stigma.

water pollinated flowers have the following adaptations

1. these flowers can float on water surface
2. the pollen grains are small and have more volume than its mass
3. the stegma is broad to easily capture the flowing p.grains
4. pollen grain are resistive to water so that water can not demage
5. pollen grain is sticky

Pollination is when pollen grains from an anther, the male portion of a flower, are transferred to a female part in the flower, known as the stigma. In order for pollination to be successful, the pollen grains transferred must be from a flower of the same species.
After the pollen grains land on the stigma, they create a pollen tube through the length of the style or stalk connecting the stigma and ovary. Once the pollen tube is complete, the pollen grain will send sperm cells from the grain down to the ovary. When the sperm cells reach the ovary and the egg cells, fertilization will occur, which will result in the formation of the seed. The seed will then be released from the parent plant and will be able to grow into a plant and continue the reproductive cycle using the method of pollination.

Types of Pollination

• Although all flowering plants rely on pollination for reproduction, there is a variation in how plants pollinate. There are two types of pollination, called self-pollination and cross-pollination.
• Self-pollination is the more basic type of pollination because it only involves one flower. This type of pollination occurs when pollen grains from the anther fall directly onto the stigma of the same flower. Although this type of pollination is simple and quick, it does result in a reduction in genetic diversity because the sperm and egg cells of the same flower share genetic information.
• Cross-pollination is a more complex type of pollination that involves the transfer of pollen from the anther of one flower to the stigma of a different flower. This type of pollination results in an increase in genetic diversity because the different flowers are sharing and mixing their genetic information to create unique offspring.

El Niño is the warm phase of the El Niño–Southern Oscillation and is associated with a band of warm ocean water that develops in the central and east-central equatorial Pacific, including the area off the Pacific coast of South America.

This story deals with a village called palampur. Lesson say us about the main activities of farming ,small scale industries,dairy,transport and etc.... This village have 450 families of different castes.nearly 80 upper castes

The purpose of the story is to introduce some basic concepts relating to production and this we do through a story of a hypothetical village called Palampur. ... This village has about 450 families belonging to several different castes. The 80 upper caste families own the majority of land in the village.

The purpose of the story is to introduce some basic concepts relating to production and this we do through a story of a hypothetical village called Palampur. ... This village has about 450 families belonging to several different castes. The 80 upper caste families own the majority of land in the village.

Microsporogenesis: Sporogenous cells fill the whole interior of a microsporangium. They divide with the growth of another and increase their number. Ultimately they are transformed into microspore mother cells which are diploid (possess two genomes or double set of chromosomes). The microspore mother cells or microsporocytes develop an internal layer of callose which breaks the plasmodesmal connections among themselves. The separated mother cells round off and undergo meiosis to produce tetrads of haploid microspores or pollen grains. The phenomena is called microsporogenesis. The pollen grains of a tetrad grow and separate from one another. However, they remain attached forming compound pollen grains in Typha. In Calotropis and related plants, all the pollen grains of another lobe remain united in a single sac called pollinium. Two pollinia of adjacent another are attached to produce a translator.

Its significance with reference to its chemical nature are as follows: It is one of the most resistant organic substance which can withstand high temperature, strong acids and alkali. No enzyme that degrades sporopollenin is so far known. This sporopollenin helps the pollen grain to be well preserved.

0°C

Literally

The melting point of ice is 273.18 K

The melting point at which ice — a solid — turns to water — a liquid — is 32°F (0°C).

the semipermeable membrane surrounding the cytoplasm of a cell.

The cell membrane is a biological membrane that separates the interior of all cells from the outside environment which protects the cell from its environment. The cell membrane consists of a lipid bilayer, including cholesterols that sit between phospholipids to maintain their fluidity at various temperatures.

The flower: The flower is the reproductive unit in the angiosperms. It is meant for sexual reproduction. A typical flower has four different kinds of whorls arranged successively on the swollen end of the stalk or pedicel, called thalamus or receptacle. These are calyx, corolla, androecium and gynoecium. Calyx and corolla are accessory organs, while androecium and gynoecium are reproductive organs. In some flowers like lily, the calyx and corolla are not distinct and are termed as perianth.
Parts of a Flower
Each flower normally has four floral whorls, viz., ca1yx, corolla, androecium and gynoecium.
Calyx. The calyx is the outermost whorl of the flower and the members are called sepals. Generally, sepals are green, leaf like and protect the flower in the bud stage. The calyx may be gamosepalous (sepals united) or polysepalous (sepals free).

Corolla. Corolla is composed of petals. Petals are usually brightly coloured to attract insects for pollination. Like calyx, corolla may be also free (gamopetalous) or united (polypetalous). The shape and colour of corolla vary greatly in plants. Corolla may be tubular, bell-shaped, funnel-shaped or wheel-shaped.
Androecium
Androecium is composed of stamens. Each stamen which represents the male reproductive organ consists of a stalk or a filament and an anther. Each anther is usually bilobed and each lobe has two chambers, the pollen-sacs. The pollen grains are produced in pollen-sacs. A sterile stamen is called staminode.
Stamens of flower may be united with other members such as petals or among themselves. When stamens are attached to the petals, they are epipetalous as in brinjal, or epiphyllous when attached to the perianth as in the flowers of lily.
The stamens in a flower may either remain free (polyandrous) or may be united in varying degrees. The stamens may be united into one bunch or one bundle (monoadelphous) as in china rose, or two bundles (diadelphous) as in pea, or into more than two bundles (polyadelphous) as in citrus. There may be a variation in the length of filaments within a flower, as in Salvia and mustard.
Gynoecium
Gynoecium is the female reproductive part of the flower and is made up of one or more carpels. A carpel consists of three parts namely stigma, style and ovary. Ovary is the enlarged basal part, on which lies the elongated tube, the style. The style connects the ovary to the stigma. The stigma is usually at the tip of the style and is the receptive surface for pollen grains. Each ovary bears one or more ovules attached to a flattened, cushion-like placenta. When more than one carpel is present, they may be free (as in lotus and rose) and are called apocarpous. They are termed syncarpous when carpels are fused, as in mustard and tomato. After fertilisation, the ovules develop into seeds and the ovary matures into a fruit.

Miscible ~ liquid that dissolve each other and particles cannot be seen. For example - Sugar in water Immiscible ~ liquid that do not dissolve each other and particles can be seen. For example - oil in water

Miscible liquids are ones that can mix together – like water and ethanol. Immiscible liquids are ones that can't – like oil and water.