Excretion
Respiration
Planets
stars
Misc
100
Har-like structures that line the nasal cavities and trachea are called ____.
What is cilia?
100
Earth is special among the planets because it has _____.
What is oceans?
100
During what phase can a lunar eclipse occur?
What is a full moon?
100
Outer layer of the skin; it contains dead skin cells.
What is the epidermis?
200
In which vessels are materials exchanged between the blood and the body cells?
What are capillaries?
200
During gas exchange, which substance moves from the alveoli into the blood.
What is oxygen?
200
The layer of the sun you see when you look at a photograph of the sun is called the _____.
What is photosphere?
200
The lifetime of a star depends on _____.
What is its mass?
200
Skin cells produce ______, which helps the digestive system absorb calcium.
What is vitamin D?
300
Name a function of the excretory system.
What is To collect and remove wastes from the body?
300
Which parts of the respiratory system divide into smaller and smaller tubes in a pattern that resembles the branches of a tree.
What are bronchi
300
The tendency of a moving object to continue moving in a straight line or a stationary object to remain in place is called ____.
What is inertia?
300
The Hertz-sprung Russell diagram shows the main sequence stars_____.
What is increase in brightness as they increase in temperature?
300
The function of the white blood cells.
What is defend against invaders?
400
Needed substances are carried to the body cells by: ____.
What is blood?
400
What do you call the chemical process where oxygen and glucose react to release energy inside the body cells?
What is respiration?
400
The sun produces energy by ____.
What is nuclear fusion?
400
A supernova is the explosion of a dying ____.
What is a giant or supergiant star?
400
In the Northern Hemisphere, the winter solstice occurs when the sun is directly overhead at _______.
What is 23.5 south latitude.
500
Tiny filtering structures where urine is produced in the kidneys are called:_____.
What are nephrons?
500
The dome-shaped muscles that controls breathing?
What is the diaphragm?
500
From new moon phase to full moon phase you see _____.
What is an increased amount of the lit side of the moon?
500
The model of the earth where the earth is the center of the solar system is called ____.
What is geocentric system?
500
When stars begin to run out of fuel, they first become_____.
What is a red giant or super giant?
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