Biology Chapter 1 & 2 Test
What is an ecosystem?
Community of living things, as well as nonliving features ( of the environment) such as earthquakes, tornados, etc.
System
Complex organization formed from a combination of parts (Ex. Bird Wing)
Eukaryotic
Contain nuclei and other organelles
What is the broadest category used to classify life forms?
Domain
Consumers
Eat food made by the producers
Hypothesis
Educated guess
Controlled Experiment
Experiment that tests the effect of a single variable
Natural Selection
If a variation is helpful, individuals with this variation may live longer and produce offspring than those that do not have it.
Adaption
Inherited trait that helps the organism's ability to survive and reproduce in its particular environment.
Qualitative data
Is the form of descriptions instead of measurements. (Ex. Fish swam in a zig-zag motion across the pond)
Evolution
Means to generate change in proportion of different inherited gene in a population.
Quantitative data
Observations that are recorded as measurements. (Ex. The Plants height is 23 centimeters)
Population
Organisms belonging to the same species
Unicellular
Organisms made of one cell
Models
Physical or mental representation of how people understand a process or an idea. They help explain ideas about the natural world.
What is the scientific method?
1. Observation 2. Hypothesis 3. Experiment 4. Data 5. Conclusion
List the different levels of an organism from smallest to biggest.
1. organ 2. tissue 3. cells 4. organelles 5. macromolecules 6. molecules 7. atoms
System
A complex organization created from a combination of parts
Species
A distinct form of life.
Variable
A factor or condition that is subject to change
Theory
A well-tested explanation that makes sense of a great variety of scientific observations.
What is the definition of a successful organism?
An organism that can produce offspring that can reproduce offspring
Technology
Applying scientific understanding for a specific purpose.
Name the 3 domains
Bacteria, Eukarya, Archaea
How does life on Earth depend on energy from the sun?
Plants use the sunlight as energy to produce food for the consumers. The consumers then eat the plants to give themselves energy. Thus life is sustained through sunlight.
Name 4 Kingdoms of Eukarya
Protist, Animalia, fungi, and Plantae
Data
Recorded observation
Variable (2nd definition)
Suggested answer to a well-defined scientific question
All the parts of the planet that are inhabited by living things make up (what)?
The Biosphere
DNA
The chemical responsible for inheritance.
Biosphere
The global scale that consists of all parts of the planet inhabited by living things.
What is the goal of science?
The goal of science is to understand nature
Photosynthesis
The process by which plants use sunlight to make food.
Cells
The smallest, basic unit of structure an organism.
Homeostasis
To maintain a constant body temperature (or state) "steady state".
Genes
Unit of inherited information along a Dna Molecule
Organism
individual living thing
Prokaryotic
lack nuclei and other organelles
Multicellular
organisms that are made of many cells
Observation
using the senses to gather information
