Organism Roles
A plant makes its own food. What role does it have in a food system?
What is a producer?
What source provides energy for a plant to make food?
What is sunlight?
What does a food web show about organisms?
What is who eats whom?
What can help a seed begin growing before it has leaves?
What is food stored in the seed?
A rabbit gets food by eating plants. What role does the rabbit have?
What is a consumer?
Name the two materials that contribute most of the material in a plant’s growth.
What are carbon dioxide from the air and water?
Does a food web automatically show the number of organisms in each population?
What is no?
A seedling grows pale in a dark cupboard. What does light help the plant develop so it can turn green?
What is chlorophyll?
Mold grows on a dead log and breaks it down. What role does the mold have?
What is a decomposer?
Water travels up from roots through a plant. What can it carry from the soil?
What are dissolved minerals?
In a meadow food web, grass feeds grasshoppers, which feed frogs, which feed snakes, which may be eaten by hawks. Put these organisms in order from largest to smallest population, using the usual pattern in this example.
Correct response: What are grass, grasshoppers, frogs, snakes, and hawks?
In the celery investigation, why did students include a vial with water but no celery?
What is a control, to compare water loss when no celery is present?
In a garden, a bean plant is eaten by a caterpillar. After the caterpillar dies, fungi break it down. Name the producer, consumer, and decomposer.
Producer: bean plant
Consumer: caterpillar
Decomposer: fungi
A plant makes sugars in its leaves. In the plant transport model studied, which direction do dissolved sugars travel?
What is down from the leaves through the stems toward the roots?
Tiny openings in leaves let water vapor out. Name one gas that can enter through them.
What is carbon dioxide?
Celery with leaves gains mass, and its vial loses more water than the control and the vial with celery without leaves. What claim do these results support?
What is that some water stays in the plant and some leaves through the leaves?
In a pond, algae are eaten by tadpoles, and tadpoles are eaten by a heron. When the heron dies, bacteria and fungi break it down. What happens to the matter from the dead heron after it is broken down?
What is it returns to the soil or water, where producers can use it again?
A student says that plants get their food from the soil. Correct this idea by saying where a plant makes its food and what it makes it from.
What are the leaves, using sunlight (energy), carbon dioxide, and water?
A meadow food web has arrows from grass to grasshoppers to frogs. Why can’t the food web alone tell you whether there are more grasshoppers or more frogs, and what other model could show this?
What is it shows who eats whom but not how many of each there are, and a population chart or bar graph could show the numbers?
Seedlings grown in a dark closet and on a windowsill both grew, but only the windowsill plants were dark green. Explain both results.
What is the seeds hold stored food that starts growth, but only the windowsill plants got the light needed for chlorophyll, so only they turned green?