A student has brown hair. This is a description of a(n)
• A. cell system
• B. inherited trait
• C. recessive trait
• D. acquired trait

Which characteristic would you expect a puppy to acquire from its owners?
• A. number of legs
• B. eye and hair color
• C. ability to wag its tail
• D. to come when called

What type of reproduction has occurred when an organism is produced from two parents?
• A. Nonsexual
• B. Sexual
• C. Unisexual
• D. Asexual

Students made a model ecosystem on their school lawn. They dropped equal numbers of different colored toothpicks in the grass to represent insects. They were given one minute to pick up as many toothpicks as they could. They picked up more red and blue toothpicks than green. How does this model represent nature?
• A. The green toothpicks represent camouflage in insects.
• B. This model is as accurate as real life.
• C. The model is on the same scale as nature
• D. The model shows that most insects live in grasses.

A tangelo is a cross between a tangerine and a grapefruit.
Why do plant scientists make genetic crosses like this?
• A. the new offspring may have desirable traits
• B. we need to keep discovering new fruits to stay healthy
• C. they are accidents that scientists cannot prevent from happening
• D. artificially produced foods are better for people than natural ones

Which animal has traits adapted for a water environment but not a land environment?
• A. cat
• B. spider
• C. lizard
• D. fish

A piece of a geranium plant is cut and placed it in a jar of water in the window.
Several weeks later the piece has grown into a new plant. Which of the following is true about the genetic relationship between the first plant and the new one?
• A. The two plants are different genetically.
• B. The two plants are slightly different genetically.
• C. The two plants are genetically identical.
• D. There is no way to know the genetic relationship.

A flower is a structure that allows which type of reproduction for the plant?
• A. Nonsexual
• B. Sexual
• C. Unisexual
• D. Asexual

Students made a model ecosystem on their school lawn. They dropped equal numbers of different colored toothpicks in the grass to represent insects. They were given one minute to pick up as many toothpicks as they could. They picked up more red and blue toothpicks than green. How is this model different from nature?
• A. It represents natural camouflage.
• B. It demonstrates the relationship between insects and their predators.
• C. There are some variables acting in nature not demonstrated in this activity.
• D. The colored toothpicks represent the camouflage in insect wings and bodies.

Using the table below that shows the number of each organism that live in the rainforest and a desert, which organism would be most likely to survive if placed in another ecosystem?
Organism
Fern
Snake
Mouse
Monkey
Insects
• A. fern
• B. monkey
• C. insect
• D. mouse
Rainforest many some none many many
Desert none some many none many

Which structural trait do nearly all children have in common with their parents?
• A. same number of legs
• B. same types of hobbies
• C. same intelligence
• D. same eye and hair color

A baby horse will have the most structural traits in common with which animal?
• A. a zebra
• B. a horse
• C. a mule
• D. a donkey

Which of the following is a structural trait of all living things?
• A. being made of cells
• B. having two legs
• C. having hair
• D. having two types of teeth

How do the large, flat teeth of a cow help it survive?
• A. it can fight off predators
• B. it can eat every kind of food
• C. flat teeth rarely decay
• D. it can grind grasses better

What adaptive advantage do the stripes on a tiger provide?
• A . protection from the cold
• B. camoflage in tall grass
• C. improvements in eyesight
• D. corrects for excessive sunlight

Why do wolves have large sharp teeth?
• A. to help them dig burrows to live in
• B. to help them kill their prey
• C. to help them care for their offspring
• D. to help them attract a mate

Human beings walk upright.
What adaptive advantage does this provide?
• A. we run faster than other animals
• B. we see in more colors than other animals
• C. it allows us to use our hands
• D. it gives us the ability to hear better

Students dropped different colored toothpicks in lawn grass. They were given one minute to pick up as many toothpicks as they could. Students found that they had more red and blue toothpicks than green.
Ecologists observed that the Varying hares
("rabbits") fur is brown in the summer and white in winter. They found that the population remained about the same in winter and summer. What advantage does the model presented in the classroom have over the natural setting?
• A. The time is unrealistic. Instead of a few minutes, considerable time lapses for organisms to adapt.
• B.
The process that is modeled cannot be observed and counted.
• C.
Different lifelike conditions can be easily brought into the model.
• D. The toothpick color cannot accurately reflect live organisms.

When a genetic trait allows a group of animals to be more likely to survive and reproduce, what happens to that trait?
• A. it becomes extinct
• B. it becomes more common
• C. it becomes the only trait available
• D. it cannot be predicted, genetics involves chance

Jose plays the piano extremely well but his parents do not play at all. What type of trait is piano playing?
• A. inherited
• B. musical
• C. acquired
• D. genetic

Using the table below that shows the number of each organism that live in the rainforest and a desert, what characteristic would you expect insects to have?
Organism
Fern
Snake
Mouse
Monkey
Insects
Rainforest many some none many many
Desert none some many none many
• A. high adaptability
• B. low reproductive rate
• C. a few different kinds
• D. the ability to fly

Dairy cows now produce more milk per cow that ever before.
Why?
• A. people have changed the genetic make-up of cows
• B. cows are always changing in nature
• C. cows live in feedlots without grass
• D. there are more cows now than ever before

What advantage do the butterflies in picture A have?
A B
• A. They are brightly colored.
• B. They have large wings
• C. They blend with the background
• D. They can eat many different kinds of food.

Using the table below that shows the number of each organism that live in the rainforest and a desert, why might the fern be found in a rainforest but not the desert?
Organism Rainforest Desert
Fern
Snake
Mouse
Monkey
Insects many some none many many none some many none many
• A. It cannot travel that far
• B. It cannot protect itself in the desert
• C. There are too many other plants
• D. There is not enough water

What type of reproduction has occurred when an organism is produced from only one parent?
• A. Nonsexual
• B. Sexual
• C. Unisexual
• D. Asexual

A plant that grows a new plant from a piece of the stem has which type of reproduction?
• A. Nonsexual
• B. Sexual
• C. Unisexual
• D. Asexual

Why are the bones of bird hollow?
• A. to allow for more blood flow
• B. to make the bird lighter when flying
• C. to allow the bird to lay eggs
• D. to give the feathers room to grow

Grasses are very difficult to pull away from the ground. How do their root systems benefit grasses?
• A. the absorb water from the soil
• B. they make food for the plant
• C. they firmly anchor the plant to the ground
• D. they make it impossible for the plant to die

Which type of reproduction results in offspring that are most different from the parent organisms?
• A. Nonsexual
• B. Sexual
• C. Unisexual
• D. Asexual

Why do dogs grows thicker fur in the winter and shed it in the summer?
• A. They are better able to survive different weather patterns
• B. They grow hair to get rid of extra food they eat in the winter.
• C. They have to replace the hair because it becomes brittle.
• D. They used to build their dens out of hair they shed.

Sickle Cell Anemia is a blood disease caused by a person's genetic information. How does knowing that this disease is genetic help people?
• A. Genetic diseases are inherited traits, so treatment will be different than treatment for diseases people can catch.
• B. Genetic diseases are inherited traits, so we can learn what kind of germs carry Sickle Cell Anemia.
• C. Genetic diseases are acquired traits, so we can learn how to avoid catching Sickle Cell Anemia.
• D. Genetic diseases are acquired traits, so people with the disease can change their diet and lifestyle to get better.

Pat's mom is a great cook. People keep telling Pat that she will also be a great cook one day because she will "get it from her mom." What kind of assumption are people making when they say this?
• A. True - cooking ability is an inherited trait
• B. True - cooking ability is an acquired trait
• C. Inference - cooking ability is an inherited trait
• D. Inference - cooking ability is an acquired trait

Both parents of a Siamese cat have green eyes. Their offspring also have green eyes.
This would be an example of
• A. an acquired trait
• B. an inherited trait
• C. a learned trait
• D. a found trait

Which of the following is an example of an organism reproduced asexually?
• A. A sea star being cut in half and each half regenerating a full sea star
• B. Female salmon laying eggs on gravel streambeds to be fertilized by a male
• C. Pollen blown by wind from one flower to another resulting in a seed
• D. Pollen carried by an insect from one flower to another

Which of the following is an organism that usually reproduces asexually?
• A. ant
• B. bacterium
• C. clam
• D. dolphin
• E. earthworm

Which of the following organisms reproduce asexually?
• A. rats
• B. mosquitoes
• C. bacteria
• D. salmon

Which is the best example of how science and improvements in technology affect life?
• A. A birdwatcher feeds seeds to birds.
• B. A person plants a garden in her backyard.
• C. A student watches a snake eat a mouse.
• D. A dairy farmer breeds cows to produce more milk.