difficulties in Biological Definition

Down syndrome

... ) is the most representative, causing highly variable degrees of learning difficulties and physical disabilities . It is named for John Langdon-Down , the ... Down syndrome widens at this age. Many children with Down syndrome do have difficulties reading and understanding more than a rather basic vocabulary. Complex ...

Abiogenesis

... from contamination from without, putrefaction did not occur, and the matter remained free from microbes. The nature of sterilization, and the difficulties in securing it, as well as the extreme delicacy of the manipulations necessary, made it possible for a very long time to be doubtful as to the ...

Archaea

... through fusion of an archaean and eubacterium, which became the nucleus and cytoplasm, which accounts for various genetic similarities but runs into difficulties explaining cell structure. External links Archaea ArchaeaWeb - by UNSW - Information about Archaea Introduction to the Archaea, ...

Edward's syndrome

... also results in significant developmental delays. For this reason a full-term Edward's syndrome baby may well exhibit the breathing and feeding difficulties of a premature baby . Given time and the assistance regularly offered premature babies, however, some of these infants are able to overcome these ...

Human

... there are 53 men for every 100 women. Because humans are bipedal, the pelvic region and spinal column tend to get worn, creating locomotion difficulties in old age. Humans are also more likely than other primates to suffer from obesity because of poor diet and lack of exercise . Genetics ...

Insulin

... taken as subcutaneous injections by single-use syringes with needles , or by repeated-use insulin pens with needles. There are several difficulties with the use of insulin as a clinical treatment for diabetes: mode of administration selecting the 'right' dose and timing selecting an ...

Stem cell

... grow the cells. Embryonic stem cell researchers are currently attempting to grow the cells beyond the first stages of cell development, to overcome difficulties in host rejection of implanted stem cells, and to control the multiplying of implanted embryonic stem cells, which otherwise multiply ...

Thermoregulation

... Also the special nerves of perspiration can increase or lessen heat loss by promoting or diminishing the secretions of the skin. There are greater difficulties in the exact determination in the amount of heat produced, but there are certain well-known facts in connexion with it. A larger living body ...