Search Results for: spite
Analogous structures
Analogous Structures Definition In evolutionary biology, analogous structures are biological structures having similar or... Read More
Non-living thing
Non-living Thing Definition A non-living thing in biology means any form without a life, such as an inanimate body or... Read More
Scientists brought dead pig brain partly back to life
Death is inevitable to any entity that has life. When there is a beginning there ought to be an end. However, the recent... Read More
SELFISH GENE – selfish to persist
What is a selfish gene? A selfish gene is not a gene that makes an individual selfish. In fact, it may even be involved in... Read More
Plant sets off “SOS” for plant defense when it gets hurt
When herbivore, such as an insect, nibbles a plant leaf, the plant sets off an "SOS" or distress signal as one of the... Read More
Sex Reversal – When Males Grew Ovaries Instead of Testes
Summary: Sex reversal is not unusual in some animals, especially in invertebrates. As for the vertebrates, there are... Read More
Plant Tissues
Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More
Animal cell
An animal cell is the fundamental functional unit of life of animals. It is also the basic unit of reproduction. Animal... Read More
Homologous structures
Homologous Structures Definition What are homologous structures? In biology, homologous structures are physical features... Read More
Koch postulate
Definition noun The four principles intended to ascertain the underlying relationships between a microbe and a... Read More
Divergent evolution
Divergent Evolution Definition Divergent evolution refers to the process by which interbreeding species diverged into two... Read More
Allotetraploid
Allotetraploid Definition An allotetraploid is an organism with four sets of chromosomes (4n). This is in contrast to the... Read More
Homeostatic equilibrium
Definition noun (1) The tendency of an organism or a cell to regulate its internal conditions, usually by a system of... Read More
Naked virus
Viruses are infectious entities with size ranges between 20 to 400 nanometers. The mammoth-sized virus would be about the... Read More
Homeostasis
Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More
Spontaneous generation
Definition noun plural: spontaneous generations The previously popular notion that living organisms arise or develop from... Read More
Biogenesis
Biogenesis Definition Biogenesis refers to the idea or the process whereby a living thing comes from another living thing,... Read More
Convergence
Definition noun (evolutionary biology) The evolutionary process in which the organisms evolve bodily parts that are... Read More
Dominant species
Dominance is the state of being supreme or dominant. Community dominance refers to the form of dominance where certain... Read More
Hallucination – Are we the only ones “seeing” things or animals hallucinate, too?
Hallucination is defined as perceiving something that seems real but in fact, it is not. Some references take it as a... Read More