Chapter 1 Study Guide Flashcards
What is the lowest level of structure that can perform all activities required for life?
A cell
What are the properties of life?
1- cell and organization: a cell can only perform it’s specific function. Ex. Heart cell
2- energy and metabolism: energy is created by chemical reactions. An organism needs energy to live.
3- response to stimuli: an organism will respond to its environment. Ex. A zophobas morios likes dry substances more than wet substances.
4- homeostasis: our bodies keep a specific internal environment. Ex. Our bodies stay at a temp of around 98.6°F.
5- growth and development: an organism will get larger and more complex over the span of its life time.
6- reproduction: an organism produces more of its species.
7- evolution: an organism adapts to its environment and over time develops things that help it to survive better.
Compare and contrast the two major classifications of cells.
Prokaryotes:
- does not have a nucleus
- don’t have many organelles
- less complicated than eukaryotes
- are bacteria
- decomposers
- bubonic plaque
- bacteria is in out digestive system
Eukaryotes:
- has nucleus
- has lots of organelles
- animals, plants, fungi, protists
True or False
The three multicellular kingdoms are classified according to how they obtain energy.
True
True or False
The universal language of life can be condensed down into 4 nitrogenous bases, Adenine, Guanine, Cytosine, and Uracil.
?
What are the three domains and three kingdoms for the classification of life?
3 Domains:
- eukaryotes
- prokaryotes
- archea
3 Kingdoms:
- animals
- plants
- protists
Contrast population, community, and ecosystem
Population: total number of a species in a specified region
Community: a group of a species in that region. Usually similar in some way.
Ecosystem: a community of living and non-living things that work together. They effect the environment in some way
What are the parts of the scientific method?
- ask a question
- research
- hypothesis
- test hypothesis with an experiment
- analyze data and form conclusion
- communicate conclusion
What is the difference between artificial and natural selection?
Natural selection: genes are passed on naturally through reproduction
Artificial selection: genes are passed on unnaturally. Ex. Breeding
What is a hypothesis
The third step in the scientific method where you guess what is going to happen before you do your experiment.
What is Archea?
A single called organism. They are prokaryotes which means they have no nucleus or any other membrane bound organelle in their cells.
What is Biology?
The study of life
What is a community?
A group of species that gather together in a specific region. Ex. Zebra’s all hang out together
