Bio 4 lsn1

Species

A group of organisms that can reproduce together and produce fertile offspring. 

Classification (from non-specific to specific)

Domain, kingdom, phylum, class, order, family, genus, species

Binomial system

Invented by linnaeus, based on the combination of two Latin names denoting genus and species

Heredity

passing dna to offspring

Recombination

random mixing of DNA from parents

Survival of the fittest

theory by Charles darwin, the organisms best suited to their environment are the ones most likely to survive and pass on their traits

Outcomes/types of mutation

Negative; disease, neutral; no effect, positive; improves

Natural selection

this happens due to the natural development/evolution of the ecosystem. When any kind of competition occurs, those best adapted to the new situation survive to reproduce

Factors of natural selection

Predators, toxins, parasites, animals of same species, changes in habitat or climate

Artificial selection

happens due to human influence; selective breeding (different crop types, dog types, etc.)

How do bacteria become resistant to anitbiotics?

there is variation in the population due to mutation, some bacteria are resistent against the antibiotics and will have a higher chance of survival and are therefore capable of reproduction, leading to an increase of resistant bacteria

Explaining Darwin’s theory of evolution

Find a variation, identify an advantage, explain who survives, explain how the population changes over time