Biological Concepts Quiz

Unity of Biology

• Biology is unified by the principles of cellular organization, genetic information transfer, and evolutionary processes.
• All living organisms share common functions such as metabolism, growth, and reproduction.

Major Theme in Biology

• Evolution by natural selection serves as a central theme that explains both the unity and diversity found in life forms.
• This process illustrates how species adapt over time leading to biodiversity while retaining fundamental similarities.

Organism Functions

• Organisms possess cellular structures that enable movement, growth, and reproduction.
• Processes such as cellular respiration, division (mitosis), and reproduction (sexual and asexual) are essential functions for life.

Levels of Organization

• Biologists examine life from molecular to ecological levels, utilizing a reductionist approach that involves studying systems in smaller, manageable parts.
• Different levels include molecules, cells, tissues, organs, organisms, populations, communities, ecosystems, and the biosphere.

Observation and Inquiry

• Biologists employ various tools such as microscopes, field studies, and laboratory experiments to make observations of biological phenomena.
• Formulating questions is often guided by hypotheses which subsequently lead to experiments and data collection for analysis.