what is a growth tissue and what does it do??
544359
It's a tissue that grows, and it makes the plant bigger.
235993
As a plant grows up ward it bears leaves on the sides of the upright stem.In the axile of every leaf( the point where the leaf stalk is attached to  the stem.), there is an axillary bud.This bud IS THE STARTING POINT OF A NEW BRANCH.\nAs long as the main stem continues to grow actively these axillary bud are dormant.But when the main stem stops growing or becomes slow in its growth, the axillary buds are activated by certain growth hormones that are produced naturally in the pant and the meristem tissue(embryonic or formative tissue) inside the buds begin to multiply and gradually begins to develop in to a side branch. It may be an ordinary vegetative branch like the main stem itself or a flowering branch.It depends upon the season,the age of the plant and the type of the hormone.\nIn Nutshell: In plants the branches develop from the meristem tissue.They are present in the buds and activated by hormones.\nFor more than this get hold of a proper botany book ( anatomy book) and study yourself.
115635
DNA contains a complete blueprint for the body, not only for growth but also repair.  Although each cell contains a complete copy of the original DNA, the particular cell is differentiated from the original DNA containing cells at conception and can only make cells of a particular type (blood, skin, bones, brain, etc.).  During growth, cells divide because the blueprint has not been completed.  Much later little growth is required except perhaps hair, skin and gut lining, etc. and DNA splits and reproduces to make repairs (to patch wounds, etc.) to restore the blueprint construction to normal best it can.  Differentiation may occur because particular cells are influenced by surrounding cells.  Therefore a new toe never grows within a damaged eye.
270174
stem cells can regenerate. There are certain places in our body that do not regenerate (re-grow) any cells that get damaged such as our brain and nervous system. If stem cells are planted in those areas, it can help re-grow cells in those areas by which people can recover from serious illnesses.
1110318
Heat causes the surrounding tissue to expand slightly and accept the blood being pumped to the area.  The blood delivers needed nutrients that speed healing.
479183
My first thought, is organs.\n\nBut let me look.\n\nNope, I was wrong they form together to form tissue.  The building block of all of us.
1062157
It grows at any age any time you are sexually or otherwise attracted to someone else or have naughty thoughts!  Haha get it, it "grows?!"
699995
Apical meristem.\nDan.
548396
Growth and change in their bodies
263414
When you work out your muscles get tiny tears in them, this along with lactic acid build up secreted by the muscles during exercise are what make you feel sore. When your body undergoes protein synthesis and muscle regeneration the tears are healed with another layer of muscle tissue. Over time the tissue will increase a noticeable amount and will increase the size of the actual muscles. In order for protein synthesis and muscle generation to take place you need to work out hard with a balanced diet and plenty of fluids.
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Stem cells are primal cells that retain the ability to renew themselves through cell division and can differentiate into a wide range of specialized cell types\n\nBone marrow (or medulla ossea) is the soft tissue found in the hollow interior of bones. It is the place where most new blood cells are produced.
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Yes, hair on the rest of your body also grows.\n\nEach hair, no matter where it is on your body, head, leg, face or inside your ear, is programmed to grow to a certain length, then stop, live so long, and fall out. \n\nHow about facial hair? It obviously grows constantly, or guys would not have to shave it off all the time. Mustaches, beards and eyebrow hairs fall out when they reach maturity, and if you don't trim it, will grow to the same length each time before falling out. \n\nEach of your hundreds of thousands of hairs on your head are on rotating growth cycles, with about a 100 hairs falling off every day.\n\nEach one is on its own random cycle so you don't lose them all on one day. Your whole body works like that. \n\nToday, several million of your bloods cells died, and today the same amount were born. Everything dies and regenerates. Your stomach cells dissolve and are replaced every few days, bone cells take much longer. Every 7 years, there is not one cell in your body that is left from 7 years ago.\n\nSo every 7 years, you are totally new. That's why when someone asks how old I am, I always say 7 years old. \n\nWe are like a wave in the ocean...it is not a moving hunk of water in the shape of a wave moving as a unit from ocean to shore. It is a moving pattern, made of NEW water every few feet. The wave, like your body, just retains the pattern of you, not the specific stuff of which you are made.
456399
Mainly plant growth is controlled by auxins, gibberellins, cytokinins, ethylene gas, abscisic acid. auxins help in growth of roots, gibberelins for shoot, cytokinins for cell elongation, cell multiplication, cell maturation, ethylene gas and abscisic acid are antagonistic and control the dropping of fruits, leaves etc
393975
it has evolved as a defense mechanism. it can be seen that if a limb is cut off of a fetus before a specific time point, the limb will grow back. in children if tehy cut off their finger tips at a young age they may grow back. there is a point when your cells can no longer regenerate body parts from specific stem cells. this is what much of the stem cell research is on, the signals that tell the stem cells to differentiate into teh correct cell.
1117207
Copied from website...\n\nMitosis is responsible for growth and development, as well as for replacing injured or worn out cells throughout your body. For simplicity, we have illustrated cells with only six chromosomes.\nClick for larger image\nInterphase : Chromosomes duplicate, and the copies remain attached to each other. \nProphase : In the nucleus, chromosomes condense and become visible. In the cytoplasm, the spindle forms. \nPrometaphase : The nuclear membrane breaks apart, and the spindle starts to interact with the chromosomes. \nMetaphase : The copied chromosomes align in the middle of the spindle. \nAnaphase : Chromosomes separate into two genetically identical groups and move to opposite ends of the spindle. \nTelophase : Nuclear membranes form around each of the two sets of chromosomes, the chromosomes begin to spread out, and the spindle begins to break down. \nCytokinesis : The cell splits into two daughter cells, each with the same number of chromosomes as the parent. In humans, such cells have two copies of 23 chromosomes and are called diploid.
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cells join to create tissues\ntissues join to create organs\norgans combine to create organ systems\norgan systems join to create organisms\n\ntheres two months of Biology for me, summed up right there
411734
'\nxylem vascular tissue makes the wood after the secondary growth then it is called 'secondary xylem'.