Comparing Structures
Which of the following is most similar to human lungs of the respiratory system?
A.fins
B.gills
C.skin
D.swim bladder
A Fins
Many organisms live in the forest. Taller trees in the forest are often cut down for wood.
How would this environmental change most likely help smaller plants to better survive
and reproduce?
A. More sunlight would reach the smaller plants.
B. Water would erode the soil needed for smaller plants.
C. Animals would be able to more easily eat the smaller plants.
D. Humans would build houses and fertilize the smaller plants.
A. More sunlight would reach the smaller plants.
Which answer best describes the function of the liver in the human body?
A. The liver cleans the blood and breaks down fat for digestion.
B. The liver stores large quantities of blood and oxygen.
C. The liver removes excess fluids from the body.
D. The liver mixes blood and oxygen
A. The liver cleans the blood and breaks down fat for digestion.
Plants have stems that function to provide support. This organ in plants is most similar to which of the following human organs?
A. intestines
B. skeleton
C. heart
D. skin
B. Skeleton
Hurricane Andrew hit South Florida in 1992. This hurricane caused many of the animals in
the Miami Zoo to lose their homes in the zoo. Two animals that lost their homes are listed and described below.
Animal Descriptions
Collared lemming: Thick, white fur and sharp claws
Marsh rabbit: Thin, brown fur and a strong swimmer
If both animals were going to relocate to forest in Florida, which one would most likely have a
better chance of survival and why?
A. The marsh rabbit because its ability to swim would help it to scare away its predators.
B. The collared lemming because its sharp claws would help it grip the ice when walking.
C. The marsh rabbit because its thin, brown fur would help it blend into its environment and stay cool.
D. The collared lemming because its thick white fur would help it stay warm during the winter months.
C. The marsh rabbit because its thin, brown fur would help it blend into its environment and stay cool.
What is the function of the pancreas?
A. mixes blood and oxygen
B. removes excess fluids from the body
C. stores large quantities of blood, minerals, and vitamins
D. helps with digestion by secreting enzymes to process sugars
D. helps with digestion by secreting enzymes to process sugars
Both plants and animals must reproduce. Which part of a plant contains structures similar to human ovaries?
A leaf
B root
C stem
D flower
D Flower
Some zebras are taller, and some can run faster. Some have longer hair, and some have longer tails. Which of the following best describes why it is important for a population of animals to have differences between individuals?
A. Differences help individuals recognize each other within the population.
B. Differences ensure that every individual will survive if the environment changes.
C. Differences determine how large a population can be over a certain period of time.
D. Differences ensure that at least some individuals may survive if the environment changes
D. Differences ensure that at least some individuals may survive if the environment changes
Which part of the body protects organs, provides support, and forms blood cells?
A. skeleton
B. muscles
C. brain
D. skin
A. skeleton
Some animals have internal skeletons and others have exoskeletons. Which statement is true about the two skeleton types?
A. Internal skeleton and exoskeleton both protect the animal’s body.
B. Internal skeleton and exoskeleton both allow animals to move quickly.
C. Internal skeleton and exoskeleton both limit the movement of the animal.
D. Internal skeleton and exoskeleton both allow the animal to grow without limit.
A. Internal skeleton and exoskeleton both protect the animal’s body.
A drought is a period of low rainfall, leading to a shortage of water. Why might trees of type A
thrive while trees of type B die during a drought in a certain forest?
A. Type B trees have an adaptation that lets them compete for water better than Type A trees.
B. Type A trees have an adaptation that helps them store water better than Type B trees.
C. Type A trees all developed a new adaptation during the drought.
D. Type B trees are the only kind that need water to survive.
B. Type A trees have an adaptation that helps them store water better than Type B trees.
Which part of the body adds oxygen to the blood by taking in and releasing air?
A. pancreas
B. skeleton
C. lungs
D. heart
C. Lungs
A plant can release water from its leaves. It can control the rate at which this happens
by opening and closing small openings on the surface of the leaf called stomata.
Which human body organ performs a similar function?
A. skin
B. brain
C. heart
D. small intestines
A Skin
When the weather gets warmer, deer will often rub against trees to remove clumps of fur. What is the best reason for this behavioral adaptation?
A. This adaptation helps the deer reproduce.
B. This adaptation helps the deer store water.
C. This adaptation helps the deer feel cooler.
D. This adaptation helps the deer camouflage itself.
C. This adaptation helps the deer feel cooler.
Which part of the body assists in making new organisms?
A. skin
B. muscles
C. sensory organs
D. reproductive organs
D. reproductive organs