Science
Nervous system of vertebrates and invertebrates
The functional unit of the nervous system is a highly specialized cell called the neuron (Gr. "nerve"). Neurons are …
The functional unit of the nervous system is a highly specialized cell called the neuron (Gr. "nerve"). Neurons are …
Plasma membrane or cell membrane is the outer most boundary of the animal cells and inner to cell wall in plant cells. Cell memb…
Word porifera is derived from latin, porus means minute holes or tiny opening and ferra means to bear . Hence animal of this…
The to and fro motion of a body about it's mean position is known as ocillatory motion . The back and forth motion of a bod…
Bacteria 🦠Bacteria are unicellular organisms that do not contain a membrane bound nucleus . Each has a single chromosome pre…
1 The Brain The human brain is enclosed in a bony case called the cranium . An adult human brain weighs about three pounds an…