Criado por Makenna Ornes
aproximadamente 3 anos atrás
|
||
Questão | Responda |
5 characteristics of life | 1) consist of 1 or more cells 2) take in & use energy 3) sense & respond to environment 4) maintain homeostasis 5) reproduce & grow |
cell | organized unit that can live & reproduce by itself using energy, raw materials, & instructions in DNA -smallest unit that can be alive |
primates | mammals that walk on 2 feet such as humans & apes |
vertebrates | animals with backbones |
3 kingdoms/domains of life | eukarya, bacteria, archaea |
eukarya kingdom | animals, plants, fungi, microscopic organisms (protists) |
mammals | vertebrates that have body hair |
closest primate relative | apes |
why are humans more complex? | great manual dexterity, analytical abilities, complex social behavior, great verbal skills |
life's organization order | atoms-molecules-cells-tissues-organs-organ systems-organism-population-community-ecosystem-biosphere |
producers | self-feeding organisms that secure energy from physical environment like plants |
primary consumers | organism that feeds on primary producers |
secondary consumer | organism that eats primary consumers |
tertiary consumers | organism that feeds on primary & secondary consumers |
quaternary consumers | top predators of environment; eats tertiary consumers |
humans are typically... | secondary consumers |
energy flow | sun - producers (some energy lost) - consumers - decomposers (some energy lost) |
energy | one-way flow through organisms & cycling of materials |
scientific studies are... | systematic |
steps of scientific method | 1) observe natural phenomenon 2) identify question/problem to explore 3) develop testable hypothesis 4) make specific prediction 5) test prediction |
ecosystems are... | webs of life and actions in part of web affect the whole |
examples of effects of human activities | loss of biodiversity climate change acid rain |
experiment | test carried out under conditions researcher can control |
variable | factor that can change with time or with different circumstances |
control group | differs from experimental group; doesn't change or receive IV |
sampling error | develops when experimenter uses sample/subset of a population for experimental group that is not large enough to be representative of the whole |
science has to be... | based on logic |
critically thinking | 1) evaluate source 2) evaluate content (let credible evidence do convincing and question credentials/motives) |
correlation | 2 things happened at same time |
cause | the reason why something happens |
what to remember about cause and correlation | cause doesn't equal correlation |
fact | verifiable info |
opinion | involves subjective judgement |
critical thinking def | an objective, evidence-based evaluation of info |
theory | explanation of range of observations/events based on repeated testing of hypothesis |
a theory can be... | modified or rejected |
science can't... | explain meaning of life or why we all die |
science doesn't involve... | value judgements |
homeostasis | state of chemical and physical stability inside the body |
negative feedback includes... | sensors, integrating center/control, effectors, & response |
why more diseases in recent years? | 1) more people on planet 2) more people traveling 3) misuse/overuse of antibiotics |
respiratory tract preventative measures | handwashing cover mouth for sneeze/cough disposal of used tissues vaccination programs |
digestive tract preventative measures | handwashing good public sanitation proper food storage, handling, cooking |
blood preventative measures | avoid needle sharing maintain pure public blood supplies vaccination programs |
skin preventative measures | handwashing limit contact with infected items |
Quer criar seus próprios Flashcards gratuitos com GoConqr? Saiba mais.