Diurnal periodicity
a circadian rhythm with primary expression of the periodicity during daylight hours, as in the release of microfilariae of loa loa into the peripheral blood during the day, with far fewer released at night; associated with the day-biting habits of the vector, chrysops species.
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..