BIOLOGY BASICS

What is the correct order of the levels of organization in a living thing, starting with the smallest level?

• Cells > Tissues > Organs > Organ Systems > Organism
• Organism > Cells > Tissues > Organs > Organ System
• Cells > Organs > Tissues > Organ Systems > Organism

Which of these is NOT an essential biological macromolecule?

• lipids
• proteins
• carbon dioxide
• carbohydrates
• nucleic acids

Which of these is not an example of homeostasis?

• maintaining an internal body temperature (thermoregulation)
• adjusting blood sugar levels
• white blood cells attacking bacteria
• maintaining cell pressure (osmoregulation)

Which of the following is a common part of all cells?

• mitochondria
• nucleus
• plasma membrane
• cell wall

Which of the following is NOT a characteristic of all living things?

• They are made of thousands of cells
• They respond to their environment
• They grow and develop
• They pass their traits onto their offspring

Cell specialization in multicellular organisms allows cells to

• respond to their environment.

• reproduce.

• perform different functions & increase efficiency

• be less complex.

Which statement is TRUE about humans and other complex multicellular organisms?

• have tissues that run independently of each other, carrying out processes that keep us alive.
• have systems of organs that work together, carrying out processes that keep us alive.
• have brains to regulate the many complex functions
• have unicellular design to increase efficiency