The process of natural selection involving the genome for a species directionally choosing certain genes to remain prominent in the species, such as a growth in size in response to predation.
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Directional Selection
The process of natural selection involving the genome for a species directionally choosing certain genes to remain prominent in the species, such as a growth in size in response to predation...
Circulation
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..
Primitive Animals
Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..
The Evolutionary Development of Multicellular Organisms
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
Arthropods
The arthropods were assumed to be the first taxon of species to possess jointed limbs and exoskeleton, exhibit more adva..
Still Water Animals
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
Insects
There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..
