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The UNICELLULAR ORGANISMS RESPIRE through their BODY SURFACE

Infectious disease can SPREAD through following means
air
water 
food etc
vectors are the CARRIERS of diseases 
ex malaria kala azar
we can prevent malaria by cleaning our suurounding throwing dirty water away putting meshes on the WINDOW etc

CARBON CYCLE

Explanation:

carbon cycle

Herbicides are  used to kill unwanted plants from the FEILD. This includes the wild flowers GROWING in the FIELD margins. As a result there are far fewer flowers for the bees . 
It is a fact that bees kept in a city generally do far better and make more honey than bees kept in rural locations because city bees have access to parks and people's gardens with their wide range of flowers, WHEREAS rural bees are now faced with AGRICULTURAL monocrops and far fewer wild flowers.

Plants and animals HELP us in man ways. we must protect them to keep our life and the existence going.there are many WILDLIFE, parks and etc for the conservation of these living organisms.animals depend on plants for their survival.plants provide us various life giving SOURCES or things REQUIRED for our body.they provide medicinal herbs,timber,wood for making sports goods etc.they are thus as source of living. animals are also a type  of living BEINGS so we must protect them.so i urge everyone to conservation  plants and animals and protect them for the future.

It is so COZ penicillin is ANTIBIOTIC and only cures diseases CAUSED by BACTERIA. Whereas jaundice is a sisease caused by virus, so penicillin does not cure it.Chicken Pox has been eradicatedPrinciple behind it is VACCINATION

Ferns are complex seedless plants that have megaphylls that contain more than one VEIN. 

Mosses are bryophytes that FOUND in moist places. Mosses does not have any vascular system which MAKES them incapable of carrying in WATER, fluids or nutrients.  

Megaphylls in ferns gives them ability to survive and strive in variety of region such as desert, top of mountains etc due to ability of ferns rhizome to carry water over a large area. 

These CAPABILITY makes ferns more evolved over mosses.

Plants like bryophytes and pteridophytes are usually very delicate and cannot withstand sun rays.So the PREFER GROWING in moist shady places.Moreover these plants reproduce by spore formation.The spores need moist and shade to grow and REACH to its NEXT stage.They are highly water dependent and cannot prevent water loss.Thus moist and humid places are APPROPRIATE for the growth of these plants.

Yeah of COURSE we are luck that ozone layer is not STABLE near the EARTH surface as it is made up of 3 atoms of oxygen and POISONOUS which effects the human generation 

Because JAUNDICE is CAUSED by a VIRUS where as PENICILLIN is BACTERIA!

No it is not POSSIBLE . The sperm should TRAVEL through the FALLOPIAN tube to enter the OVUM and FERTILIZE .

Worms ants SNAKE mole beetles Bacteria  fungi insect SPIDER groundhog PLANTS

Answer:

The evolutionary process is always not PROGRESSIVE. Development of COMPLEX body designs doesn't mean these species have better chances of survival.

Among bacteria, spiders, fish, and CHIMPANZEES, it is difficult to say which organism has a better design because these belong to different species.

However, bacteria which has the simplest body system can survive extreme chemical conditions, droughts, salt WATER, high TEMPERATURES even around volcanic eruption.

DNA copying is a very CRUCIAL part or PROCESS during reproduction. It is IMPORTANT for copying the characteristics of parents into the child.

DNA is the component of cell which contains all the genetic material or genetic INFORMATION of the individual.

In the process of DNA copying, a copy of genetic material from the parent is transferred into the child so that the child have the characteristics of his parents and RESEMBLES them.

Animals are classified into different phylum according to MANY features not only BASED on one similarity. crocodiles have been classified as reptiles in SPITE of having four chambered heart because they have dry , non-glandular skin, epidermal scales are ALSO present . they are COLD blooded , oviparous etc. all these features are specific for reptials . so crocodiles are reptiles .

Answer:

solution means mixture of SOLVENT and solute is called solution

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Answer:

A cryptogam is a plant that reproduces by SPORES, without flowers or seeds. "CRYPTOGAMAE" MEANS "hidden reproduction", referring to the fact that no seed is produced, thus CRYPTOGAMS REPRESENT the non-seed bearing plants.

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❤. Analogus organs ❤

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Answer:

In arthropods, the hypodermis is an epidermal layer of cells that secretes the chitinous cuticle. The term also refers to a layer of cells lying IMMEDIATELY below the EPIDERMIS of plants. The hypodermis is beneath the DERMIS which is beneath the epidermis. It is USED mainly for FAT storage.

ANSWER: लेंगिक जनन के लाभ:

१) संतान में आनुवंशिक भिन्नता पैदा करते हैं।

२)प्रजाति भिन्नता के कारण नए वातावरण के लिए अनुकूल हो सकती है, जो उन्हें जीवित रहने का लाभ देती हैं L

During RESPIRATION if the temperature is too cold, the MOLECULES move too slowly, but if the temperature is too HOT, the ENZYMES denature

ANSWER:

the effect of air pollution is it jarm the atmosphere.

the causes of air pollution are using too much of MACHINES .

the steps to prevent air pollution are as follows i. try to use the renewable resources. II. try to use the FUEL in a sensible manner

Skeletal muscle. ... It is a form of striated muscle tissue, which is under the voluntary control of the somatic nervous system. Most skeletal muscles are attached to bones by BUNDLES of COLLAGEN FIBERS known as tendons. A skeletal muscle refers to multiple bundles (fascicles) of cells JOINED together CALLED muscle fibers.

System: Musculoskeletal system

ANSWER:READ in your BOOK

Explanation:in your book

ANSWER:

heya mate

here is UR answer

Neurons (also known as neurones, nerve CELLS and nerve fibers) are electrically excitable cells in the NERVOUS system that function to process and TRANSMIT information. In vertebrate animals, neurons are the core components of the brain, spinal cord and peripheral nerves.

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Answer:

HIV,swine FLU

EXPLANATION:

this DISEASES CAUSED by virus

ANSWER:

It has TWO other NAMES...

GOLGI APPARATUS ...AND

GOLGI BODIES...

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Answer:

MOLLUSCS ALSO have a well-developed excretory system, using tubular nephridia organized as kidneys, that collect liquid wastes from the coelom and DUMP them in the mantle cavity, where they are pumped out of the SHELL. Sexes are separate (dioecious), except for BIVALVES and some snails, which are hermaphroditic.

ANSWER:

I don't KNOW this answer

Answer:

EMBRYOGENY

EMBRYOGENY IT IS ALSO CALLED EMBRYGENESIS.

The formation and development of an embryo. the study of these processes.

PERISPERM

perisperm (PLURAL perisperms) (biology) The layer of nutritive TISSUE, DERIVED from the NUCELLUS, that surrounds the embryo of a seed in some angiosperms.

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Explanation:

1.) FRIDAY, 22 May

2.) Species

3.) Arthropod

4.) Corbett NATIONAL Park

5.) Olive ridley TURTLE Nesting Zone.

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Answer:

Law enforcement agencies will CONTINUE to fight criminals. Efforts to reduce and deter crime and MAINTAIN criminal justice are unending PROCESSES because criminal will always be there. Striving to stay ahead of criminals is the need of the hour. Law enforcement personnel are TRAINED to deal with different crimes like drug smugglers, human trafficking and fake currency notes. Forensic science especially the study of DNA is helping to bring criminals to justice.

Answer:

6H2O+6CO2= C6H1206+6O2

Answer:

A worker A BEGAN digging a TRENCH. After three DAYS, another worker B joined him

It now took them eight more days to complete the work. Instead, if during the first three days, B alone would have worked, then both of them would have required another NINE days to complete the job How much time would each TAKE to complete the job. How much time would each take to complete the job separately?

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EXPLANATION:

ROOT PRESSURE is the transverse osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves.

Root pressure is also linked to the phenomenon of guttation, i.e., the LOSS of water in the form of liquid droplets from the vein endings of CERTAIN herbaceous plants.

Root pressure is only able to transport water up to small heights. However, it HELPS in re-establishing the continuous chains of water molecules in the xylem. Transpirational pull maintains the flow of water molecules from the roots to the shoots.

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