General Science Questions

A daisy-wheel printer works on the same principle as a ball-head typewriter. Daisy wheel printer is a type of impact printer invented in 1969.

The daisy wheel is a disk made of plastic or metal on which characters stand out in relief along the outer edge. To print a character, the printer rotates the disk until the desired letter is facing the paper.

Cells are the the basic structural unit of the body.

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms activities.

Trees that lose all of their leaves for part of the year are known as deciduous trees. Those that don't are called evergreen trees.

Climatology is a study of climate which is subspecialty of environmental science studies.

A protein that acts as a hormone is INSULIN.

Insulin is a peptide hormone produced by beta cells of the pancreatic islets; it is considered to be the main anabolic hormone of the body.  Insulin helps keeps your blood sugar level from getting too high or too low.  

The nutrient which provides the maximum energy is Fat. It provides the energy of 9 calories/gram.