Chapter 1 Flashcards
Antibiotics only kill…
bacteria NOT viruses
Biology is…
the study of life
there are ______ characteristics of life
seven
what are the characteristics of life
- Order
- Reproduction
- Growth and Development
- Energy processing
- Respond to environment
- Constant internal environment
- Evolve and adapt
What kind of response is responding to the environment
external response
what is homeostasis
body’s ability to remain constant
life builds from….
least complex to most
Hierarchy of life
atom –> molecule –> organelle –> cell –> tissue –> organ –> organ system –> organism –> population –> community –> ecosystem –> biosphere
what is the smallest unit to have all 7 properties of life?
cell
what are the two types of cells?
prokaryotic and eukaryotic
1st to evolve, small and simple
prokaryotic
membrane bound organelles, large and more complex
eukaryotic
organisms interact with…
their environment
most ecosystems have…
producers, consumers, and decomposers
all life contains…
genes on DNA
what is DNA translated into?
functional proteins
how many bases is DNA made of?
4 bases in a double helix
what is diversity?
different sequences of the four bases of DNA
Biology’s chief unifying principle…
evolution
list the 3 domains:
bacteria, archaea, eukarya
bacteria are…
a. prokaryotes
b. eukaryotics
c. extreme prokaryotes
a. prokaryotes
archaea are…
a. prokaryotes
b. eukaryotes
c. extreme prokaryotes
c. extreme prokaryotes
Kingdoms of Eukarya:
Animalia, Plantae, Fungi, Protists
what makes protists special?
they are a kingdom of multiple kingdoms and are single cellular eukaryotes
a hypothesis is a…
proposed explanation
what is science?
body of knowledge about the natural world
