Chapter 1 material Flashcards
the study of life
Biology
what are these characteristics?:
1. Made of cells and displays organization
2. Requires materials and energy
3. Maintains homeostasis
4. Responds to stimuli
5. Reproduces and develops/grows
6. Adaptations evolve over time
characteristics of organisms
the basic units of matter
Atoms
made of atoms
Molecules
made of molecules
Cells
that is multicellular (has more than
one cell)
Tissue
made of tissue
Organs
made of different organs
Organ systems
made of several organ systems
Organism
In an individual organism
atoms, molecules, cells,tissue, organs, organ systems, organism
beyond an individual organism
Species, populations, communities, ecosystems, and biosphere
a group of similar organisms
species
all the members of a species in one area
population
all the various species in a given area
community
where the community interacts with the
physical environment (water, land, climate). Several
similar ecosystems on Earth are called biomes.
ecosystems
all ecosystems/biomes on the livable parts
of Earth, including the lithosphere (land masses),
stratosphere (air), and the hydrosphere (water).
biosphere
Cells use nutrient molecules to make their parts and products. All of these chemical reactions that take place in
a cell
metabolism
a state of biological balance
to stay alive
Homeostasis
something in the environment
that causes a reaction.
Stimulus
standard series of steps in gaining new
knowledge that is widely accepted among scientists.
the scientific method
what steps are used in the scientific method
- Observation
- hypothesis
- experiments
- Presenting the data
a direct method of gathering information by asking questions and “seeing what
happens”
Observation
a possible explanation for a natural event using inductive reasoning
hypothesis
procedures designed to collect data for the purpose of testing a hypothesis.
Scientists use deductive reasoning
experiments
Data from experiments can be presented in a variety of formats, such as tables and graphs, which are useful tools in visual displaying information.
Presenting the data
using creative thinking to combine isolated facts into a cohesive whole idea.
inductive reasoning
are concepts that join together well-supported and related hypotheses. If theories are broadly accepted for a long length of time by many observations and experiments, it becomes a scientific
principle/law.
Theories
which is the application of scientific
knowledge and advances to the interest of humans
technology
the changes in normal cycles of Earth’s climate that may be attributed to human activity.
Climate change
absorbs the sun’s rays and radiates them back to Earth
global warming (used to be called the greenhouse effect)
We are currently losing hundreds of species every year due to human activities.
Biodiversity and habitat loss
