Science 3rd exam
the basic Components of all organisms
Cells
a process by which a cell divides into two or more daughter cells
Cell division
Membrane-bound Organelle found in eukaryotic Cells, Controls all activities of the cell
Nucleus
are seperated by the nuclear membrane from the cells cytoplasm and organelles
Cells genetic material
thread like Structures made up of proteins and DNA, which contains the genetic information that controls the activities and functions of a cell
Chromosomes
Copies of the replicated Chromosome are joined at the region
Centromere
is one half off two identical Copies of a replicated Chromosome
Chromatid
cylindrical Structures found in animal cells
Centrioles
also known as body Cells, refer to the cells forming the body tissues of organisms
Somatic cells
also known as sex cells or gamefes, refer to the cells involve in Sexual reproduction
Germ Cells
process of Cellular division in which a somatic cell divides into identical diploid Cells, each Containing equal number of Chromosomes
Mitosis
rocess of germ cell reproduction in which the number of Chromosomes are reduced by half, Producing two haploid cells
Meiosis
which literally means creation of gametes
Gametogenesis
the kind of meiosis that forms sperm cells
Spermatogenesis
the formation Of egg cells, or ova
Oogenesis
states that when the pain of alleles of an individual is heterozygous, only one of the Pair of alleles is Physically expressed and is considered dominant.
Law of Dominance
He is an Augustinian Monk, Pea Plants
Gregor Mendel
it is a broad concept encompassing the total diversity of living systems, which includes the diversity of species, habitat/genetic diversity
Biodiversity
it is defined as the number of species abundance of each species that live in a particular location
Species diversity
it refers to the range of different habitats in an ecosystem or biome
Habitat Diversity
it refers to the number of different species Of vegetation present
Vegetative Diversity
it refers to the variety of genetic variation among individual Organisms in a population
Genetic Diversity
it is the process through which populations of living Organisms adapt and change
Natural Selection
Organisms that are able to breed with one another and produce fertile offspring
Species
the emergence of a new species from an existing one Happens as a result of natural selection
Speciation
used the term species to describe a group of very similar organisms
Carl linnaeus
is a hierarchical system for classifying and Identifying Organisms
Taxonomy