Explore topic-wise InterviewSolutions in Current Affairs.

Organ SPECIFIC and tissue manifestation. human BODY has a NUMBER of organs, tissues and systems. every pathogen has developed adaptation to INFECT a particular organ, tissue or system. in some cases the organ or tissue specificity depends upon the portal of entry while in others it is not so. a few examples are mentioned as follows:
1. if disease-causing microbes enter with air via the nose, they are likely to go to the lungs, e.g., bacteria which causes T.B of lungs.
2. virus that causes HIV infection, enters the body through sexual organs during sexual contact and then tends to spread to lymph nodes throughout the body.
3. malaria-causing microbes are transmitted through mosquito bite, and MOVE to the liver and then to the red blood cells

Some measures of conserving our NATURAL resources are SWITCH off engines when not in use, switch off  your electric appliances, as it TAKES fossil fuels to generate .

Fossil fuels are used to fuel cars and airplanes, power electricity plants, and heat our homes.They are also used to make medicines, cosmetics, plastics, synthetic fabrics, and lubricants.When you BRUSHED your teeth today, you used a product made from oil – toothpaste.Look at your shoes – they are a product made from oil.Sunglasses, tires, tennis balls and TV’s are all PRODUCTS of oil and gas.Next time your playing basketball with your friends, think about theball your dribbling. You guessed it, the rubber to make that ball camefrom oil.The FACT is, a huge number of products that we use every day,wouldn’t be available without the oil and gas extracted and processedright here in NEW Mexico.

No there are some CHANGES which we TERM as "VARIATIONS"

Most SIMPLE cases of hiccups come after eating too much or too quickly.due to fast eating our stomach becomes distended which causes irritation.this causes contraction of the diaphragm  as it does when we breathe in and causes hiccups.Sometimes hiccups occurs because of a disturbance to the nerve pathways from the brain to the muscles involved. This explains why hiccups may occur with temperature changes or emotional SITUATIONS. It is ALSO the REASON that a sudden shock can sometimes abolish an attack.

As in HUMANS we COUNT PEOPLE in population we ALSO count SPECIES in population

When a plant with inflated green pod (IIGG) triat is crossed with a plant with CONSTRICTED yellow pod (iigg) triat, the F1 generation thus PRODUCED includes all PLANTS with inflated green PODS.

                     IIGG × iigg 
            F1   ⇒  IiGg

But, the F1 plants are genotypically different from the parent generation dominant plant as the PROGENY includes heterozygous dominant plants while the parent plants are homozygous.

Cells do not transfer signals but NERVE cell or neurons transfer signals between them.

Nerve cell contains Axon and dendron.

The signals are TRANSMITTED from one nerve cell to ANOTHER in the form of synapse.

These signals REACH the brain and then in turn return to all PARTS of body.

So nerve cell acts as a sensory system.

It is difficult to classify BACTERIA because there are so many SPECIES of bacteria and MOSTLY the GENETIC MATERIALS are same in all the species.

When Frederick Griffith injected a mixture of heat KILLED S(virulent strain) and R(non virulent strain) BACTERIA, the mice died. Moreover, he recovered living S bacteria from the dead mice.
He concluded that the R strain bacteria had been transformed by the heat killed S strain bacteria. Some 'transforming principle', transferred from the heat-killed S strain, had enabled the R strain to SYNTHESIS a smooth polysaccharide coat and become virulent.
This is actually, due to the TRANSFER of the genetic MATERIAL (the transforming principle).

Sexual MODE is better as it maintains the reproductive vigor of the ORGANISM and HELPS in the process of evolution as there are 2 different SETS of CHROMOSOMES that make up chromatin network hence introducing variations.

It MEANS that the DEVELOPMENT history(ontogeny) of an organism repeats its EVOLUTIONARY history(phylogeny) in an abbreviated form

MicrosporogenesisThe pollen sacs represent microsporangia. Thus each antherhas four microsporangia, two in each anther LOBE. These are COVERED by thecommon epidermis of the anther. They contain pollen grains or microspores1.  Very young anther consists of group of activelydividing parenchymatous cells SURROUNDED by a layer of epidermis.
2.   It becomes two lobed; each anther lobe developsinto two microsporangia in its two corners.
3.  In each lobe in the two corners one cell becomesconspicuous from the rest- archesporial cell.
4.  Archesporial cell divides to form an outerparietal cell and an inner sporogeneous cell
5.   Parietal cell divides to form concentric layersof pollen sac wall
6.  The pollen wall externally is made up of ASINGLE layered epidermis. Inner to the epidermis is a single layer of radiallyelongated cells with fibrous thickenings which help in dehiscence. The cells inthe shallow groove between two microsporangia remains thin walled and formstomium. Inner to the endothecium lie three to four layers of thin walled cellsoccur in between which disintegrates in mature anthers. The innermost layer ofcells with DENSE cytoplasm which nourishes developing pollen grains is calledTapetum.
7.      The primary sporogeneous cell divides to producea mass of sporogeneous cell or microscopore mother cell.
8.      Microspore mother cell undergoes meiosis to giverise to four haploid microspores. The microspores are arranged in a cluster offour cells to form tetrad. As the anthers mature and dehydrate, microsporedissociates from each other and form pollen grains. In some microspores do notseparate but together form compound pollen grains.

Hormones are CHEMICAL SUBSTANCES which are SECRETED by endocrine glands. They are RESPONSIBLE for CHANGES taking place in the body.

THERE ARE SIX TYPES OF KINGDOMS ,THEY ARE PLANTS,ANIMALS,PROTISTS,FUNGI,ARCHAEBACTERIA ,EUBACTERIA 
THEIR FEATURE ARE 
1) THEY ARE OF CELL TYPE,COMPLEX OR SIMPLE
2) THEY HAVE ABILITY TO MAKE FOOD 
3) THE NUMBER OF CELLS IN THEIR BODY .
PLEASE MARK MY ANSWER AS THE BEST PLEASE I REQUEST U MARK AS THE BEST PLEASE

Ans1. (i) Convex mirror makes diminished and erect image which help the driver of the vehicle to interpret the vehicles coming behind it.
(ii) Convex mirror gives wide range of view to the driver 
as you can see below


Ans.2 A mature HAPLOID MALE or female germ cell which is ABLE to unite with another of the opposite sex in sexual REPRODUCTION to form a zygote.

Ans3. NO, but a suitable angle could not be achieved 
for example your class slab is PLACED in water if the incident angle is 30 degrees then it may be 45 degrees with glass slab because water will also refract light
ANS4. no idea boss idon't wanna provide you wrong
sorry

The FLOWER with the WORLD's LARGEST BLOOM is the RAFFLESIA arnoldii.

TOPSOIL IS THE UPPER LAYER OF SOIL WHICH SUPPORTS PLANTING 
BECAUSE ONLY TOPSOIL CAN SUPPORT PLANTING HENCE IT IS MOST IMPORTANT BECAUSE ONLY HERE WE CAN GROW TREES WHICH GIVE US OXYGEN AND CONSUMES CARBON DIOXIDE PROTECTING US FROM GLOBAL WARMING AND OTHER HARMS.

1.to the BODY parts
2.carbon dioxide
3.urea
4.capillaries
5.aorta
6.heart-beat
7.salt
8.LUBB DUP
9.phloem
10.haemoglobin

6.wbc-destroys the FOREIGN PARTICLES
  plasma-dissolves MAY protiens, GASES, FIBRINOGEN, etc
  rbc-transports oxygen

When we experience stress or fear, the hormone adrenalin is released by the BODY. It is CALLED the fight or flight hormone due to its function in primitive times, when man lived in caves and the danger of GETTING eaten by tigers and other predators was real. In those times, adrenalin had TWO functions - to fight the PREDATOR and kill or hurt it (fight), or to run away from the predator and remain alive (flight).

The nerves used in reflex action by our brain is -
* motor nerves
* sensory nerves

the sensory nerves receive the impulses from the outer surrounding and carry the impulses to the spinal CORD or the brain .The brain INTERPRETS the IMPULSE and sends the message to the affected organ by motor nerves .The nerve whit connects the sensory nerve with motor nerve is called relay nerve.the PATH followed by impulses in the reflex action is called reflex arc.

The COMPOUND OCCURS THROUGHOUT the nervous system,and it functions as a neuro transmitter

Sometime there is a HIGH amount of GENE flow in the UPCOMING generations or the conditions of environment CHANGES drastically .so there is a high amount of CHANGE in genetic structure of organism

The population of each organism in a FOOD CHAIN can be shown in a sort of bar chart called a PYRAMID of numbers. The more organisms there are, the wider the bar. The producer in the food chain always goes at the BOTTOM of the pyramid of numbers.

The G1 pphase is called CELL growth ,G1 phase is a period o activity in which cell do most of there growing.during this phase , cells increase size and synthesize new proteins and ORGANELLES G2 phase is called  preparation for mitoses G2 is usally shortest of the three PHASES of interphase ,during G2 phase MANY of the organelles  and molecules required for cell division are produced ,when the event of G2 phase is completed then cell is ready to ENTER the M phase and begin the process of cell division