A
What is the process that plants use to produce food?
A carbon dioxide
B photosynthesis
C chloroplast
D sunlight
B photosynthesis
Which of these shows the flow of energy in a food chain?
A decomposers>consumers>plants>producers
B sun>consumers>producers>decomposers
C producers>predators>decomposers>consumers
D sun>producers>consumers>decomposers
D sun>producers>consumers>decomposers
Why are bacteria shown at the end of the food chain?
A they are producers, and make food from sunlight
B they are consumers, and feed off of the dead
C They are decomposers, and break down the dead
D They are consumers, and the smallest organisms in the chain
C They are decomposers, and break down the dead
Which of the following does a plant use in the process of photosynthesis?
A oxygen, sugar, water
B sunlight, oxygen, and sugar
C water, carbon dioxide, and sunlight
D carbon dioxide, sugar, and sunlight
C water, carbon dioxide, and sunlight
A tree uses a molecule called chlorophyll. Which need does chlorophyll help to meet?
A making food
B releasing oxygen
C absorbing soil nutrients
D taking in carbon dioxide
A making food
In a food chain, what would be a possible energy source for the bacteria?
A all the animals
B all the organisms
C only the hawk
D only the predators
B all the organisms
Hawks eat snakes. Snakes eat toads. Toads eat grasshoppers. Grasshoppers eat plants. Which of these statements are correct?
A a toad is an herbivore
B a grasshopper is a producer
C a hawk is a second-level consumer
D a snake is a first-level consumer
C a hawk is a second-level consumer
Which of the following is an example of a producer?
A a caterpillar
B a robin
C a tree
D a worm
C a tree
Which type of organism makes uts own food?
A consumer
B decomposer
C producer
D scavenger
C producer
In a forest food chain, what is the connection between the sun and a tree?
A the sun helps chlorophyll turn oxygen into carbon dioxide
B the tree shades animals from the sun and gives them nutrients
C the sun heats up the ground so the tree's roots can take in water
D the tree uses the sun's energy to make food through photosynthesis
D the tree uses the sun's energy to make food through photosynthesis
Where does a deer fit in its food chain?
A as both a first-level and a second-level consumer
B as both consumer and prey
C as both producer and consumer
D as both consumer and scavenger
B as both consumer and prey
Which of these is a decomposer?
A bread
B heat
C mold
D water
C mold
What does a food web show?
A how predators catch prey
B what food organisms eat
C why organisms find food
D when organisms seek food
B what food organisms eat
Alex notices a small spot of fungus growing on an orange in the back of his refrigerator. He doesn't eat the orange. He looks at the orange again a week later. Which of these is he the most likely to observe?
A the fungus has gone away
B the fungus has not changes
C the fungus has grown larger
D the fungus has changed color
C the fungus has grown larger
Jackson and Katheryn were assigned to observe the growth of a fungus on a hamburger bun. They sprayed one half of the bun with water and sealed it in a plastic bag. They left the other half of the bun dry and sealed it in a different plastic bag. Over time, what did they observe?
A mold grew faster on the dry bun
B mold grew the same on both buns
C mold did not grow inside the sealed bags
D mold grew faster on the moistened bun
D mold grew faster on the moistened bun
BONUS
Which US President banned Christmas trees in the white house?
Theodore Roosevelt
Which kind of diagram shows how much energy passes along as one organism consumes another?
A decomposition
B energy pyramid
C food chain
D food web
B energy pyramid
Which of these happens during the time a fallen log is decomposing?
A the fallen log slowly begins to die
B the fallen log continues to produce food
C the materials in the log combine into new, complex parts
D the materials in the log are broken into smaller, simpler parts
D the materials in the log are broken into smaller, simpler parts
During the decomposition process, the wastes of living organisms and the remains of dead organisms are broken down and their nutrients are returned to the soil. What is the most important cause of decomposition?
A air
B sunlight
C scavengers
D bacteria and fungi
D bacteria and fungi