Cell Structure & Function
What is the basic unit of life
Cell
Who is the father of evolution
Charles Darwin
What is a group of interacting organisms and their environment called
ecosystem
What does CER stand for in science
Claim
Evidence
Reasoning
When first discovered, cells were called:
Animalcules
This organelle is the site of cellular respiration
Mitochondria
What is a trait that helps an organism survive in its environment
adaptation
Name 2 biotic and abiotic factors in an ecosystem
Biotic- living
Abiotic- nonliving
What is a hypothesis
A testable prediction
All living organisms must do cellular respiration to generate _____________.
Energy
This structure controls what enters and exits the cell
Cell Membrane
Name 2 of the 4 pieces of evidence that support the theory of evolution
Fossils
DNA
Comparative Anatomy
Embryology
What is the role of producers in an ecosystem
They make their own food through photosynthesis
Identify the independent variable:
"A student tests how sunlight affects plant growth"
sunlight
What is the pigment that gives plants their green color?
Chlorophyll
Compare plant and animal cells. Name one structure only found in plant cells
Chloroplast
Cell Wall
Explain what natural selection is
The process where organisms with traits better suited to their environment tend to survive and reproduce more successfully, passing those traits to their offspring.
What is the difference between a food chain and a food web
Food chains show a single path of energy transfer, while a food web is a complex network of interconnected food chains
What type of graph is best for showing change over time
line graph
Plants, animals, and fungi all have _____________ cells.
Eukaryotic
Explain the importance of Lysosomes in a cell.
Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria
Describe how antibiotic resistance is an example of natural selection
Bacteria have mutated and developed defense mechanisms against antibiotic medication.
Explain how energy flows through a food web and why there is less energy at the top.
10% rule
A student claims that plants grow faster with music playing. They place one plant in a room with music and another in a silent room. What is the independent variable, and what data would you collect to support or refute the claim?
Independent variable: Whether music is playing or not.
Data to collect: Plant height over time, number of leaves, growth rate, or any other measurable growth indicator.
The most recent terrestrial ancestor from which all modern vertebrates derive from was called
Tiktaalik