sceince final Flashcards
what is speciation and an example?
he formation of new and distinct species in the course of evolution. bird beak
Where is there the most diversity in the world
Tropical forest
How does variation come to be?
Sexual reproduction results in genetic variation, or genetic differences, between parents and offspring
How does diversity produce health in an ecosystem?
oxygen production, soil genesis, and water detoxification to plant and animal communities, as well as to human society
Variation between species versus within a species
variation within species is genetic variation within that species and variation between species are genetic variations among all species.
what is mitosis
a process of cell duplication, in which one cell divides into two genetically identical daughter cells. it is asexual
What is Meiosis
a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes . it is sexual
what is a zygote
fertilized egg cell when both gamete meet