Principles of Cell Biology
What is biology?
the study of life
What is a form of cell division that halves the number of chromosomes when forming specialized reproductive cells, such as gametes or spores?
Meiosis
What is the estimation of the age of an object by measuring its content of certain radioactive isotopes?
Radiometric dating
What is the place where a particular population of a species lives?
habitat
What is the smallest unit of a substance that keeps all of the physical and chemical properties of it and it can consist of one atom or two bonded together?
molecule
What is Homeostasis?
Maintenance of stable internal conditions in spite of changes in the external environment
What is the Life cycle?
I is the entire span in the life of an organism from one generation to the next
What is a feature that has become common in a population because the feature provides a selective advantage?
adaptation
What is a community?
It is the many different species that live together in a habitat
What is a homozygous?
It is an individual that has identical allels for a trait on both homologous chromosomes.
What is the single-celled organism that lacks a nucleus and other internal compartments?
Prokaryote
What is Heredity?
It is the process of passing of traits from parents to offspring
What is a group of organisms of the same species that live in a specific geographyical area and interbreed?
population
What is the physical aspects of a habitat?
abiotic factors
What is the preserved or minerlized remains?
fossil
What is photosynthesis?
It is the process by which light energy is converted to chemical energy.
What is transformation?
It is a change in genotype caused when cells take up foreign genetic material
What is the science of naming and classifying organisms?
taxonomy
What is the functional role of a particular species in an ecosystem?
niche
What is a trophic level?
It is one of the steps in a food chain or food pyramid
What are homologous chromosomes?
They are chromosomes that are similar in size, shape, and genetic content
What is a change in the DNA sequence?
Mutation
What is the taxonomic category containing similar species?
genus
What is the gradual accumulation of substances, such as pesticides or other chemicals, in an organism?
Bioaccumulation
What is the number and variety of organisms in a given area during a specific period of time?
biodiversity