More advanced and developed than the prokaryotic cell, eukaryotic cells are those which have true or membrane-bound nucleus along with other nucleus bound cell organelles. From unicellular organisms like protozoa and amoeba, all plants and animals, including human beings are made up of eukaryotic cells.
Prokaryotic cell is one of the simplest forms of cell which makes up the unicellular microscopic organisms called acrhaea and bacteria. However, there are some cyanobacteria which are multicellular.
What is archaea?
Evolved nearly 4 billion years ago, prokaryotic cell is the simplest form of cells which lack defined nucleus or membrane-bound nucleus as well as other membrane-bound cell organelles.
Blood corpuscles (blood cells)
The study of bone is known as Osteology. The bone connective tissue is highly calcified, solid, hard, rigid connective tissue. The matrix consists of an organic component called ossein. It is the major component of adult vertebrate endoskeleton.
Noise pollution refers to the disturbing, unwanted or excessive sound that disrupts our peace of mind and interferes with our daily activities such as reading, sleeping, conversations etc. It has been established that exposure to sounds of less than 70 dB is not harmful to hearing regardless of exposure time. On the other hand, exposure to sounds of more than 85 dB for over 8 hours is potentially harmful.
This tissue is mesodermal in origin. It is the most abundant body tissue. The cells forming the connective tissues are more widely separated from each other than those forming the epithelium and intracellular substance. It has few cells, an extensive matrix and a rich blood supply.
Environmental pollution is an incurable disease. It can only be prevented. Environmental Pollution can only harm us, so the more we know about it, the better. Sciencetopia guides you through all of the possible pollutants. Each topic is explained in detail with the help of relevant intuitive images and examples. Feel free to browse through the topics below.
Climate change is real and it’s happening here and now. Delay to take actions will increase risks and decrease the number of options to address those risks.