Câu hỏi Sinh học

If we reject the hypothesis in the biological research process, we must

• restate the research question.

• form a new hypothesis.

• reobserve the subject.

• redefine the observation tools.

Which step in scientific research is used to test the hypothesis?

• Observation and data collection.

• Designing and conducting verification experiments.

• Asking questions.

• Analyzing results.

Sustainable development is understood as

• Uniform development in all fields.

• Maximizing the exploitation of natural resources.

• Meeting current needs without affecting future generations.

• Prioritizing economic, cultural, and social development.

Which of the following characteristics is not present in levels of living organization?

• Continuously evolving.

• Organized hierarchically.

• Being a closed system.

• Having self-regulating capabilities.

What is the correct order when talking about the basic levels of living organization from lowest to highest?

• cell -> organism -> population -> community -> ecosystem - biosphere.

• cell -> organism -> community -> population -> ecosystem - biosphere.

• cell -> organism -> population -> ecosystem - biosphere -> community.

• cell -> organism -> ecosystem - biosphere -> population -> community.

Green plants take in CO2 to perform photosynthesis, and CO2 is released by green plants through respiration. What characteristic of the living world does this demonstrate?

• Organized hierarchically.

• Open system.

• Self-regulating capability.

• Continuously evolving.

Water is a solvent that dissolves many substances in living organisms because it has

• high specific heat.

• polar properties.

• cohesive forces.

• high vaporization heat.

In a water molecule, two hydrogen atoms bond with one oxygen atom.

What is the reason for the high heat capacity in living organisms?

• High specific heat capacity.

• Polar nature.

• Cohesive forces.

• High latent heat of vaporization.

In a water molecule, how do two hydrogen atoms bond with one oxygen atom?

• Hydrogen bond.

• Non-polar covalent bond.

• Polar covalent bond.

• Ionic bond.