Chapter 1 Flashcards
Living things are made up of ______
cells
______ are the basic unit of life
cells
Unicellular
one cell
what is an example of unicellular
bacteria
multiceulluar
multiple cells
what is an example of multicellular
humans
What do cells become?
Tissues
What do tissues become?
organs
What do organs become
organ systems
what does an organ system become?
an organism
What do living things respond to?
The environment
What is an example of a living thing responding to an environment?
pupils constricting with light, and dilating when dark
What is metabolism?
all the chemical reactions in your body
What is homeostasis ?
the ability to maintain stable internal conditions
What is an example of homeostasis?
Shivering when cold, sweating when hot
What is Growth?
Cell division
What is development?
changing functions
What is sexual reproduction?
2 parents combine genetic info
what is asexual reproduction
1 parent passes genetic info
what is evolution (characteristics of living things)
changing overtime
what is adaptation
characteristics that help organisms survive
All living things have a _______ _______
genetic code
What are the 3 themes of biology
Unity and diversity of life, interdependence of organisms, evolution
What are the 7 characteristics of living things
- living things are made up of cells
- respond to environment
- metabolism
- homeostasis
- growth + development
- reproduction
- evolution
What is interdependence of organisms
when organisms rely on other organisms or environment
what is an example of interdependence of organisms
food chains, relationships
what is evolution (themes of biology)
an organisms genes evolve to adapt to its environment
How can living things evolve?
- by changing overtime
- descent w/ modification
- natural selection
- with traits that enable them to survive + reproduce
What are the 5 steps to a scientific method
- observation
- hypothesis
- experiment
- collecting + analyzing data
- conclusion
What is observation
something you notice that would lead to a question
what is a hypothesis
a proposed explanation to the question
what format should the hypothesis be in?
if ________, then ______ format
what should you be testing in an experiment
the independent variable
what should you be measuring in an experiment
the dependent variable
how can you collect + analyze data
data tables, graphs, bars, lines, pie
How should you make your conclusion?
By restating the hypothesis, summarizing the experiment and discussing the data numbers.
A short segment of DNA that contains instructions for the development of a single trait of an organism
Gene
As the cells in a multicellular organism multiply they become specialized for different functions in a process called
cell differentiation
Photosynthesis is part of a plants
metabolism
“a tree of life explains”
- how organisms are related t each other
- how organisms differ from each other
- the lineages of various organisms
What is an example of domain
Eukarya
Scientific theory
a well tested explanation for experimental results
Scientific law
describes an obversed pattern in nature
Scientific inquiry
the many ways in which scientists study the world
Describes an observed pattern in nature
Scientific law
The many ways in which scientists study the world
scientific inquiry
a well tested explanation for experimental results
scientific theory
