MICROBIOLOGY & DISEASES
What tiny organisms can cause illnesses such as strep throat?
Bacteria
What part of a plant absorbs water and nutrients from the soil?
Roots
Which travels faster: light or sound?
Light
How many bones are typically in an adult human skeleton?
206
What is the main source of energy for Earth?
The Sun
What does the immune system help protect the body against?
Infections and diseases
What green pigment allows plants to absorb sunlight?
Chlorophyll
What happens to light when it bounces off a mirror?
Reflection
What is the longest bone in the human body?
Femur
What instrument is used to measure heat energy in an experiment?
Calorimeter
What type of microorganism must enter a living cell to reproduce?
Virus
What part of a flower produces pollen?
Anther
What property of a sound wave determines its pitch?
Frequency
What type of tissue connects muscles to bones?
Tendons
What is the transfer of heat through direct contact called?
Conduction
What is the scientific term for an organism that causes disease?
Pathogen
What are the tiny openings on leaves that allow gases to enter and exit called?
Stomata
What is the bending of light as it passes from one material into another called?
Refraction
What type of joint allows movement in multiple directions, such as the shoulder?
Ball-and-socket joint
What is the transfer of heat through the movement of liquids or gases called?
Convection
What type of immune cell produces antibodies to fight infections?
B lymphocytes (B cells)
What type of plant tissue transports sugars from leaves to other parts of the plant?
Phloem
What is the term for the change in the observed frequency of a wave due to motion between the source and observer?
Doppler effect
What is the name of the muscle tissue found only in the heart?
Cardiac muscle
What is the scientific term for the total kinetic and potential energy of particles in a substance?
Internal energy