Indiana Academic Standards Unwrapped Guide • 9th Grade Biology Page 1 of 4
Indiana Biology Standards Unwrapped
Larry Ainsworth Rigorous Deconstruction • Units 5, 7, 8
CLUSTER 2
Page 2 of 4
HS-LS3-1: Ask questions to clarify relationships about the role of DNA and chromosomes in coding the instructions for characteristic traits passed from parents to offspring.
HS-LS3-2: Make and defend a claim based on evidence that inheritable genetic variations may result from: (1) new genetic combinations, (2) viable mutations, and (3) environmental factors.
HS-LS3-3: Apply concepts of statistics and probability to explain the variation and distribution of expressed traits in a population.
| Concepts (What Students Must Know) | Skills (What Students Must Do) |
|---|---|
| • Inheritance: Genotypes, phenotypes, alleles, chromosomes, genes. | |
| • Meiosis: Crossing over, independent assortment, haploid/diploid division. | |
| • Mendelian & Complex Genetics: Monohybrid/dihybrid Punnett Squares, codominance, sex-linked traits, pedigrees. | |
| • Environmental Influences: Epigenetic expression and environmental trait variation. | • ASK QUESTIONS: Formulate investigative queries concerning DNA sequence anomalies and subsequent traits. |
| • APPLY STATISTICS: Utilize probability laws to compute monohybrid, dihybrid, and linkage phenotypic distributions. | |
| • DEFEND CLAIMS: Argue using somatic/gamete mutation profiles. |
Content: Diploid, Allele, Crossing Over, Heterozygous, Pedigree, Mutation, Codominance.
Academic: Calculate, Defend, Predict, Clarify.
Title: "The Pediatric Genetic Counseling Clinic"
Students roleplay genetic counselors analyzing actual patient pedigree cases with recessive and codominant alleles. They construct statistical probability briefs for prospective parents, calculating risk ratios, and present their diagnostic justifications in writing.
Indiana Academic Standards Unwrapped Guide • 9th Grade Biology Page 2 of 4
Indiana Biology Standards Unwrapped
Larry Ainsworth Rigorous Deconstruction • Unit 9
CLUSTER 3
Page 3 of 4
HS-LS4-1: Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.
HS-LS4-2: Construct an explanation based on evidence that biological evolution is primarily a result of natural selection.
HS-LS4-3: Apply concepts of statistics and probability to support explanations that organisms with advantageous heritable traits tend to increase in proportion to organisms lacking these traits.
| Concepts (What Students Must Know) | Skills (What Students Must Do) |
|---|---|
| • Lines of Evidence: Comparative anatomy (homologous/analogous/vestigial), embryonic sequences, biochemistry (protein/nucleic alignment), fossil sequences. | |
| • Mechanisms of Selection: Variation, overproduction of offspring, finite resource competition, differential reproductive fitness. | • COMMUNICATE SCIENTIFIC DATA: Synthesize DNA sequence maps and morphological evidence to argue ancestral branching. |
| • CONSTRUCT EXPLANATIONS: Articulate the 4 conditions of selection mathematically. | |
| • APPLY CONCEPTS OF PROBABILITY: Support fitness selection curves (directional, disruptive). |
Content: Homology, Fossil, Speciation, Natural Selection, Adaptation, Phylogeny.
Academic: Communicate, Synthesize, Evaluate, Model.
Title: "The Speciation Cladogram Exhibit"
Students assume the role of museum curators designing an interactive exhibit tracing a model lineage (e.g., modern whales or horses). They write evidence cards correlating osteological changes, molecular alignments, and stratigraphic dating models to mathematically prove adaptation velocities.
Indiana Academic Standards Unwrapped Guide • 9th Grade Biology Page 3 of 4
Indiana Biology Standards Unwrapped
Larry Ainsworth Rigorous Deconstruction • Units 10, 11, 12
CLUSTER 4
Page 4 of 4
HS-LS2-1: Use mathematical/computational representations to support explanations of factors affecting carrying capacity of ecosystems.
HS-LS2-4: Use mathematical representations to support claims for the flow of energy through trophic levels in an ecosystem.
HS-LS2-6: Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers of organisms.
HS-LS2-7 & HS-LS4-6: Design, evaluate, and refine solutions for mitigating adverse human impacts on biodiversity.
| Concepts (What Students Must Know) | Skills (What Students Must Do) |
|---|---|
| • Ecosystem Variables: Abiotic factors, density dependent limits, carrying capacities. | |
| • Bio-Efficiency: 10% trophic efficiency limits, biomass pyramids. | |
| • Global Cycles: Biogeochemical cycles of Carbon, Nitrogen, and Oxygen. | |
| • Conservation: Habitat restoration, invasive controls. | • USE COMPUTATIONAL DATA: Apply mathematical curves to evaluate resource depletion triggers. |
| • EVALUATE CLAIMS: Examine ecological balance shifts caused by trophic cascade events. | |
| • DESIGN SOLUTIONS: Formulate actionable urban strategies to mitigate human carbon footprint levels. |
Content: Trophic, Symbiosis, Succession, Biomass, Abiotic, Cascade, Anthropogenic.
Academic: Evaluate, Refine, Design, Support.
Title: "The Wetland Conservation Proposal"
Acting as ecological consultants, students assess a local Indiana watershed experiencing agricultural runoff. They calculate carrying capacity trends, map trophic interactions, design a bio-filtration system, and present a budget-conscious mitigation proposal.
Indiana Academic Standards Unwrapped Guide • 9th Grade Biology Page 4 of 4
Metabolism is the sum of all chemical reactions occurring within an organism, including building up (anabolism) and breaking down (catabolism).
Energy Producers
Convert solar energy or inorganic chemicals into organic food molecules (e.g., plants using photosynthesis).
Energy Consumers
Must ingest or absorb external organic matter to secure their necessary carbon and energy (e.g., animals, fungi).
Metabolic energy is stored as ATP within cellular systems.
3. Maintaining Homeostasis Slide 6 / 8
The external environment is erratic, freezing, scorching, and dry.
Homeostasis is the dynamic process of keeping internal physiological states stable (temperature, pH, hydration, sugar levels) regardless of external chaos.
Negative Feedback Loops
The mechanism of correction. When a trigger offsets equilibrium, feedback structures counter-act the change to pull values back to the baseline.
🥵
Body temperature climbs → nervous system triggers sweat glands → evaporation cools skin → homeostasis restored.
Disruptions in homeostasis can lead to organ system failure, disease, or death.
4-7. The Outer Rules of Life Slide 7 / 8
Immediate dynamic action. A plant growing toward a light source (phototropism) or a paramecium swimming away from acidic environments.
Passing the torch. Genetic material is duplicated so the species endures. Living structures cannot generate spontaneously from non-life.
Long-term adaptation. Individuals cannot evolve, but entire populations modify over biological generations to fit changing niches.
Interconnected processes spanning seconds, days, and millennia.
The Bio-Border Controversy Slide 8 / 8
Viruses carry DNA or RNA and mutate quickly to adapt. Yet, outside of a host cell, they have zero metabolism, cannot reproduce on their own, and do not possess cellular structure.
Because they lack cells and metabolic functions, the scientific consensus classes viruses as non-living infectious complexes.
Today's Mission
You are now a part of the astrobiology team analyzing mysterious specimen profiles. Complete the Alive or Not Activity Sheet using the 7 criteria rules.
Indiana Standards Alignment: B.1.1, B.1.2 Next Step: Specimen Activity
2. The Viral Boundary: Why does the classification of viruses like Mimivirus spark debate among some scientists? Cite specific data points from the specimen matrix to defend your answer.
To maintain homeostasis, multicellular organisms use negative feedback loops. Study the physiological response loop below for human body temperature regulation, then complete the analytical exercises.
Stimulus Temp rises over 37°C
→
Receptor & Control Hypothalamus alerts body
→
Effector Response Sweat glands active; blood flow to skin climbs
3. Identify the "Stimulus" and "Effector Response" in the diagram above. How does this mechanism bring the body back to equilibrium?
4. Predict what would occur in a human body if a genetic condition prevented sweat glands from receiving hormonal signals from the hypothalamus during exercise.
Indiana 9th-Grade Biology Core Series Page 2 of 2
| Is Specimen Alive? | YES (Biotic) | NO (Abiotic) | NO (Abiotic boundary) |
Q1: Why is wildfire abiotic?
Model Answer: Even though wildfire demonstrates metabolic combustion and area growth, it is entirely abiotic because it has no cellular structures, lacks genetic instruction molecules (DNA), and has no active self-regulating homeostatic loops.
Q2: Why does Mimivirus classification spark debate?
Model Answer: Viruses have complex biological instructions (DNA) and evolve rapidly. Yet, outside of a host cell, they are completely metabolically inert, have no cellular structural organelles, and cannot reproduce without co-opting host resources.
Q3 & 4: Homeostasis Response Loops:
Model Answer: The body senses high temperatures (Stimulus), hypothalamus alerts (Receptor), and sweat glands cool skin (Effector). If blocked, core temperature would continue to spiral upwards, causing severe heat shock and cellular denaturation.
Indiana 9th-Grade Biology Teacher Resources Page 1 of 1
