Cells
What is a cell
The basic unit of life
Which is the broadest taxon?
Domain
What is a body system?
Group of organs working together for a similar funtion
What is the difference between a law and a theory?
a law describes what happens in nature , while a theory explains why it happens.
What is the energy source that starts the water cycle?
the sun
What is the function of the cell membrane?
controls what goes in and out of the cell
What is the purpose of classification?
Helps us identify new species by comparing their similar traits to known organisms
What is the function of excretory system?
To remove/excrete waste
True or False: If you repeat an experiment but
change two things at once, you can clearly tell
which change caused the result. Explain your
answer in one sentence.
false- we would not be able to identify which variable caused the change
What is the difference between weather and climate
weather- short term
climate- long term (50+ years)
What are the three parts of the cell theory?
-cells are the basic unit of life
-all cells come from preexisting cells
-all living things are made up of life
How do we write the scientific name?
Genus species
What is the function of the respiratory system?
gas exchange: take in oxygen and remove carbon dioxide
What are the benefits and limitations of using models in science
benefits: allows us to see/study things that may too big or small for us to typically see
cons: usually oversimplified
How does condensation lead to precipitation?
when the water vapor cools, it becomes a liquid (condensation) then the water droplets accumulate and get heavy leading to the water droplets falling out of the sky (precipitation)
Identify the structures that are only found in plant cells and describe the functions of these organelles
cell well- protects the inside of the cell
chloroplast- make food through photosynthesis
What are the three domains?
archaea, bacteria, and eukarya
How do the respiratory and circulatory systems work together?
The respiratory system brings in oxygen, the circulatory system transports it throughout the body
What is the difference between an experiment and an investigation?
experiment: includes variables where we manipulate/alter the system
investigation: we typically just sit back and observe
List the 5 earth's spheres and describe what is found in each sphere
biosphere- life
atmosphere- gas
hydrosphere- water
cryosphere- ice
geosphere- rocks
what is the difference between prokaryotic and eukaryotic cells?
prokaryotic- unicellular, lack membrane bound organelles, and have no nucleus
eukaryotic- more complex, uni or multicellular, have membrane bound organelles, and contain a nucleus
List the taxons in order from broadest to most specific
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
How do the musculoskeletal and digestive systems work together?
The musculoskeletal systems allow the muscles in your intestines to break down food and excrete waste
Chloe wants to test how different amounts of sunlight affect plant growth. What is the independent variable, dependent variable, and one control variable.
independent: amount of sunlight
dependent: amount of plant growth
control: anything we keep the same
What is the jet stream? How does it influence weather and climate? What would happen if the jet stream dipped down?
the jet stream is a highway of wind that pushes weather across the globe. If the jet stream dips down, we will experience a cold front.