Plants
Organs
Organ Systems
Comparing Plant and Animals
Any Category
More about the Human Body
100
What do the roots NOT provide for the plant?
water food
nutrients anchor into soil
food
100
Which organ of the digestive system mashes food and mixes it with acid?
stomach
100
Plants and animals have highly organized systems. Order the following based on the level of complexity, from simplest to most complex?
cells
organism
organs
organ system
cell--> organs--> organ system--> organism
100
Compare the human body to an oak tree. A human’s skin is most like which part of an oak tree?
Bark
100
After you swallow, food travels from your mouth to your stomach. Through which organ does food pass between the mouth and the stomach?
esophagus
100
Human cells need oxygen and produce carbon dioxide waste. What is the system that exchanges these gases between the body and the air?
Respiratory system
200
Which part produces food for the plant?
leaves
200
The wind is blowing over a fence.
The children shown in the illustration know that there is food cooking on the other side of the fence. Which sense lets them know this?
smell
200
Which two body systems work together closely to produce movement in human limbs?
muscular and skeletal
200
The waxy leaves on some trees help keep water inside the leaves. Which body part performs a similar function?
skin
200
Which object performs a function similar to that of the human body’s skin?
camera lens
house frame
astronaut suit
telephone wire
astronaut suit
200
Which structure sends information about vibrations to the brain?
ears
300
Which part of the plant is NOT involved in its reproduction?
roots fruit
flower seed
roots
300
The organ shown below, identified with an arrow, is a digestive organ.
What happens when food reaches this organ?
Acidic juices mix with the food.
300
The urinary system plays an important role in regulating the human body. What does the urinary system regulate?
fluid levels
300
Which structures have similar functions?
gills/veins bark/bone
mouth/roots feathers/fins
mouth/roots
300
The following picture shows the human circulatory system.
What is the function of the organ marked as X?
to pump blood
300
Name the organs involved in digestion.
esophagus, stomach, small intestine, large intestine, liver, pancreas, gallbladder
400
Describe photosynthesis.
sunlight + CO2 + water --> sugar + oxygen
400
Which organ of the digestive system absorbs nutrients from digested food?
small intestine
400
Body systems work together to supply cells with nutrients and oxygen and remove wastes. Describe the path of oxygen entering the body and moving the cells.
air - respiratory system - circulatory system - cells
400
Body systems in humans sometimes have similar functions to plant systems. For example, the human skeletal system provides structure and support for the body. The following picture shows the basic structures of a plant.
Which labeled plant structure is most similar in function to the human skeletal system?
C
400
The security camera shown in the figure records what goes on in the store. Information from the camera is sent to a computer in the office. There, the information is translated into an image.
Which part of the human body serves the same purpose as the wires leading from the camera to the computer?
nerves
400
Describe all the functions of the skin.
It prevents infection
It prevents water loss
It regulates body temperature
500
Life cycles are often shown using diagrams. Draw diagram that correctly shows the life cycle of a fruit tree growing naturally in a forest?
500
The digestive system contains several organs working together. Some organs, called accessory organs, never contain food but are still important to the process of digestion. Which organs are accessory organs to digestion?
liver and pancreas
500
Rasheed accidentally bumped his leg on a desk. What is the first thing that happened within Rasheed’s nervous system?
The nerves in his leg sensed pain.
500
What is a way digestion in some animals differs from humans?
nutrients are absorbed through the skin
500
The diagram below shows the parts of a human body system including the kidneys and bladder.
Which body system is shown in the diagram?
urinary system
500
What is the correct sequence of signals in the nervous system?
eye --> brain --> spinal column --> nerve --> muscle