Living Things

What is the definition of a living organism?

• An individual animal, plant, ot single-celled organism.

What are the characteristics of life (MRS GREN)?

• Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition

Which is NOT a characteristic of life? Stimuli, Growth, Reproduction, or Has Hair?

• Has Hair

What is the difference between autotrophic and heterophic organisms?

• An autotroph produces its own food, heterotrophs eat organisms.

How do autotrophs produce their own food?

• Through the process of photo- and/or chemosynthesis

What is the Difference between sexual and asexual reproduction?

• Sexual reproduction uses two parents and the offspring has 50% of each parent’s DNA. Asexual reproduction is faster and uses one parent.

What are the six kingdoms of life?

• Fungi, Animalia, Plantae, Eubacteria, Archaebacteria, and Protista.

What do organisms use to adapt to their environment over many generations?

• Evolution

What is the purpose of photosynthesis in plants?

• To turn the sun’s light energy into usable proteins usable for food

List all eight levels of organization for living things in order

• Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

What is the name of the process where an organism maintains their internal environment despite changes to the external environment?

• Homeostasis

What is binomial nomenclature?

• A scientific naming system for organisms where they are given a two-part name consisting of their genus and species.

What is the key difference between a Unicellular and a Multicellular organism?

• Unicellular organisms have one cell, Multicellular organisms have multiple cells.

What is the difference between prokaryotic and eukaryotic cells?

• Prokaryotes are simple with no membrane-bound nucleus, Eukaryotes are complex with a membrane-bound nucleus.

What are the two sex cells?

• Egg and Sperm.

What is the ability to respond to stimuli?

• Sensitivity/Sense