Integrated Science Final

Which step of the scientific method involves forming a testable explanation for an observation?

• Observation

• Experimentation

• Hypothesis

• Conclusion

Cells: Which of the following is found in plant cells but not in animal cells?

• Mitochondria

• Cell wall

• Nucleus

• Ribosomes

Tags

NGSS.MS-LS1-2

What is a segment of DNA that codes for a specific protein or trait called?

• Chromosome

• Allele

• Gene

• Nucleotide

Tags

NGSS.HS-LS3-1

Levels of Organization: Which of the following represents the correct order of biological organization from simplest to most complex?

• Organism → Organ system → Organ → Tissue → Cell

• Cell → Tissue → Organ → Organ system → Organism

• Tissue → Cell → Organ → Organism → Organ system

• Organ → Organ system → Cell → Tissue → Organism

Tags

NGSS.HS-LS1-2

Which human body system is primarily responsible for breaking down food into nutrients the body can absorb?

• Circulatory system

• Respiratory system

• Digestive system

• Nervous system

If an individual has two identical alleles for a particular gene (e.g., AA or aa), they are considered:

• Heterozygous

• Dominant

• Recessive

• Homozygous

The random change in allele frequencies in a population due to chance events, especially in small populations, is known as:

• Natural selection

• Gene flow

• Genetic drift

• Mutation

A significant reduction in the size of a population, often due to a natural disaster, which can lead to a change in allele frequencies in the surviving population, is called the:

• Founder effect

• Bottleneck effect

• Gene flow

• Genetic mutation

Which term describes all the living organisms in an area along with their non-living physical environment?

• Population

• Community

• Ecosystem

• Biosphere

After forming a hypothesis, what is the next logical step in the scientific method?

• Analyze data

• Draw conclusions

• Perform an experiment

• Communicate results