In this prairie food web, which organism captures energy from the sun?
A Plant
B Hawk
C Mouse
D Grasshopper
A. Plant
physical attributes that help animals meet a life need.
What is structural adaptations?
Which characteristic cannot be passed from a father to his baby boy?
Shape of his nose and mouth
His hair color and eye color
His height and skin color
The ability to use a computer and speak French
D. The ability to use a computer and speak French
According to the chart, what would most likely happen in an ecosystem if there were a sudden decrease in the number of bacteria and fungi?
A. The number of plants would increase.
B. The number of bees would increase.
C. The amount of nutrients in the soil would decrease.
D. The amount of water in the air would decrease.
C. The amount of nutrients in the soil would decrease.
C. Rabbits
2. Paul has long legs and is taller than most of his friends who are the same age. Paul has long legs because_______________________.
A. he runs a lot
B. he inherited this trait from his parents
C. he’s older than all his friends
D. his younger sister has long legs
B. he inherited this trait from his parents
Clearing a forest to build a shopping mall will most likely result in woodpeckers —
A. nesting on roofs
B. losing habitat
C. laying more eggs
D. flying slower
B. losing habitatWhat is negative human impact?
Which group is NOT represented in the food web above?
A Producers
B Primary consumers
C Secondary consumers
D Decomposers
D. Decomposer
Which two traits best help a cactus conserve water in the dry conditions of a West Texas desert ecosystem?
F. Large flowers and sweet fruit
G. Sweet fruit and sharp spines
H. Sharp spines and waxy stems
J. Waxy stems and large flowers
H. Sharp spines and waxy stems
Katherine got a hamster from her mom and dad for her sixth birthday. Hamsters are born with instincts and develop behaviors that they learn. Which of the following is a learned behavior of the hamster?
A. Having brown fur
B. Having brown eyes
C. Running in circles in a wheel inside a cage
D. Having a tail
C. Running in circles in a wheel inside a cage
Which of the following would have the greatest effect on an ecosystem because of the changes made to the environment?
A Bees building a hive in a hollow tree
B Wasps building a nest in a leafy bush
C Beavers building a dam across a stream
D Fish digging a burrow on a river bottom
C Beavers building a dam across a stream (could slow down the water too much for other aquatic organisms)
Which question cannot be answered using the diagram below?
A. What would happen if one of the organisms was removed form the food chain?
B. What are consumers?
C. Which organism is a producer?
D. What might a food chain from a marine environment look like?
D. What might a food chain from a marine environment look like?
Which bird has a beak that is best adapted for cracking seeds?
Which picture below shows an example of a behavior that is an inherited trait?
A. Picture A
B. Picture B
C. Picture C
D. Picture D
A. Picture A
What effect would building a highway have on an ecosystem?
A. Increase in butterfly migration
B. Decrease in destruction of habitat
C. Increase in carbon dioxide
D. Increase in oxygen
C. Increase in carbon dioxide
Which organism above is both predator and prey?
A. Grass
B. red fox
C. green horned owl
D. weasel
D. weasel
The diagram below shows the seed of a maple tree.
18. How is this seed MOST LIKELY dispersed (spread)?
A It is carried by the wind.
B It floats in moving water.
C It passes through an animal’s digestive system.
D It sticks to an animal’s fur.
A It is carried by the wind.
Listed below are some characteristics of a dog. Which characteristics are examples of inherited traits?
A. Having brown fur and wagging its tail
B. Having excellent hearing and barking to the tune of a song
C. Having a great sense of smell and playing fetch with a ball
D. Having a great sense of smell and shaking hands for a treat
A. Having brown fur and wagging its tail
Which of the following is a positive effect of building highways in an ecosystem?
A. Enhancing access between existing communities
B. Destruction of existing homes and businesses
C. Prohibiting some species from migrating
D. Increase in noise and air pollution
A. Enhancing access between existing communities