- Published on
Botanical Terms -adaptive radiation
1. A sudden explosion of *evolution that led to the exploitation of a variety of *habitats and swift divergence from a single ancestral form. The word appears at several taxonomic ranks. 2. A term that several authors use as a synonym for *cladogenesis.
1. A sudden explosion of *evolution that led to the exploitation of a variety of *habitats and swift divergence from a single ancestral form. The word appears at several taxonomic ranks. 2. A term that several authors use as a synonym for *cladogenesis.
- Published on
Botanical Terms -adaptive value (fitness, fitness, and selective value according to Darwin)
The ratio of genetic benefits to drawbacks that establishes a species' (or *genotype's) propensity to endure and procreate in a certain habitat. Which people are most suited to accomplish this depends on their surroundings and the competition or fight for survival they face; the "fittest" individual (or genotype) is the one who generates the greatest number of offspring that eventually reach reproductive maturity. The "survival of the fittest" has been used to characterize this type of natural selection.
The ratio of genetic benefits to drawbacks that establishes a species' (or *genotype's) propensity to endure and procreate in a certain habitat. Which people are most suited to accomplish this depends on their surroundings and the competition or fight for survival they face; the "fittest" individual (or genotype) is the one who generates the greatest number of offspring that eventually reach reproductive maturity. The "survival of the fittest" has been used to characterize this type of natural selection.
- Published on
Botanical Terms -Adaxial
oriented toward the axis of a surface
oriented toward the axis of a surface
- Published on
Botanical Terms -adelphoparasite
a parasite that usually belongs to the same family or genus and feeds on closely related animals as its host
a parasite that usually belongs to the same family or genus and feeds on closely related animals as its host
- Published on
Botanical Terms -adelphous
applied to a *androecium that has fused *filaments.
applied to a *androecium that has fused *filaments.
- Published on
Botanical Terms -Actinostele
a *monostele form of *protostele where the *xylem's cross-section is lobed or star-shaped
a *monostele form of *protostele where the *xylem's cross-section is lobed or star-shaped
- Published on
Botanical Terms – Actinostrobus
Actinostrobus (family *Cupressaceae, section *Coniferophyta)
a genus of two species of trees found as *emergents on sands and heaths in the south and west of Australia, native to the region's southwest. The swamp cypress, or A. pyramidalis, is a pyramid-shaped conifer that can grow to a height of 4 m. Its dense, vivid green foliage reaches the ground. It is raised.
Actinostrobus (family *Cupressaceae, section *Coniferophyta)
a genus of two species of trees found as *emergents on sands and heaths in the south and west of Australia, native to the region's southwest. The swamp cypress, or A. pyramidalis, is a pyramid-shaped conifer that can grow to a height of 4 m. Its dense, vivid green foliage reaches the ground. It is raised.
- Published on
Botanical Terms - Actinotus (*Apiaceae family)
a genus believed to have connected the evolution of cosmopolitan genera to indigenous Australian Apiaceae genera. Often called "flannel flowers," the majority of the genus's species are *biennial herbs that grow in arid and low-fertility locations. Australia is home to 17 species, while New Zealand is home to one
a genus believed to have connected the evolution of cosmopolitan genera to indigenous Australian Apiaceae genera. Often called "flannel flowers," the majority of the genus's species are *biennial herbs that grow in arid and low-fertility locations. Australia is home to 17 species, while New Zealand is home to one
- Published on
Botanical Terms - action spectrum
a graph showing how well certain light wavelengths support a particular photoresponse, such as *photosynthesis or *phototropism
a graph showing how well certain light wavelengths support a particular photoresponse, such as *photosynthesis or *phototropism
- Published on
Botanical Terms -activation energy (energy of activation)
The energy that must be delivered to a system in order to increase the incidence within it of reactive molecules, thus initiating a reaction. The fact that *enzymes significantly reduce the activation energy of numerous metabolic processes is a crucial characteristic.
P
The energy that must be delivered to a system in order to increase the incidence within it of reactive molecules, thus initiating a reaction. The fact that *enzymes significantly reduce the activation energy of numerous metabolic processes is a crucial characteristic.
P
