Which part of the flower produces food for the plant?
A-flowers
B- leaves
C-roots
D-seeds
B- leaves
Which structures have similar functions?
A- gills and veins
B- bark and bones
C- antennae and tongue
D- feathers and fins
C- antennae and tongue
Which organism undergoes a complete metamorphosis?
A- ladybug
B- fern
C- eagle
D- humans
A- ladybug
During a seasonal change, many trees lose their leaves. What type of behavioral adaptation is this?
A- migration
B- hibernation
C- dormancy
D- mimicry
C- dormancy
Which organism receives the direct flow of energy from the sun?
A- cricket
B- hawk
C- robin
D- weeds
D- weeds
What is the main function of the stem?
A- to make food
B- to reproduce
C- to move nutrients and water
D- to hold the plant in the ground
C- to move nutrients and water
Which is NOT a correct statement about insects?
A- They have their skeletons on the outside of their body.
B- their eyes may have thousands of lenses.
C- They absorb nutrients through their skin.
D- They lay eggs to reproduce.
C- They absorb nutrients through their skin.
Jonah saved and planted a seed from his apple. What might he expect to see come up out of the ground first?
A- a small green apple
B- a seedling apple tree
C- roots of an apple tree
D- a mature apple tree
B- a seedling apple tree
The camel's hump is an example of what type of adaptation?
A- physical
B- instinct
C- life cycle
D- behavioral
A- physical
Which structure allows a tree to be a producer?
A- branches
B- leaves
C- roots
D- trunk
B- leaves
Which plant part is NOT involved in reproduction?
A- seed
B- flower
C- fruit
D- root
D- root
Which of the following organisms takes in oxygen through gills and lungs?
A- frog
B- spider
C- fish
D- bird
A- frog
A moth and a ladybug undergo the same life cycle stages. Which stage comes after a moth's pupa stage?
A- egg
B- larva
C- caterpillar
D- adult
D- adult
What are physical characteristics of an animal that hunts?
A- sharp teeth and claws
B- gills on a fish
C- hanging upside down to sleep
D- webbed feet
A- sharp teeth and claws
Engineers built a dam to block the flow of water in a river valley. As a result, the environment changes from a river habitat to a lake habitat. Which river animals and plants may not survive this change?
A- deer that use the river for drinking water
B- willow trees that need a wet environment to survive
C- fish that travel upstream to lay eggs and reproduce
D- dragonflies that lay their eggs on reeds in shallow ponds
C- fish that travel upstream to lay eggs and reproduce
What do the roots NOT provide for the plant?
A- water
B- food
C- nutrients
D- anchor into the soil
B- food
Which human organ is most like tree bark?
A- bones
B- skin
C- lungs
D- muscles
B- skin
How do ferns reproduce?
A- cones
B- fruit
C- seeds
D- spores
D- spores
What adaptation does a black bear have that could help it survive in the tundra?
A- dark fur
B- flat teeth for crushing acorns and nuts
C- a thick coat
D- curved claws for climbing trees
C- a thick coat
A food chain, like the one below, shows how energy moves between living things.
grass---> _____________ ---> fox
Which type of living organism would best fill in the blank in the food chain above?
A- producer
B- carnivore
C- herbivore
D- decomposer
C- herbivore
What is germination?
A- seed growing into a seedling
B- flower growing into a fruit
C- seedling growing a fruit
D- seedling growing into a mature plant
A- seed growing into a seedling
A shark can smell a single drop of blood in the ocean. The shark follows the scent hunting for food. Which animal structure is most like a shark's strong scent?
A- Echolocation helps bats fly and find insects in the dark.
B- A penguin finds its baby among thousands of other babies by its call.
C- A great gray owl can hear a mouse running under 30 cm of snow.
D- An elephant follows the trail of an ivory poacher by the smell of stolen elephant tusks.
D- An elephant follows the trail of an ivory poacher by the smell of stolen elephant tusks.
Which statement best describes how to classify plants as flowering or non-flowering?
A- flowering plants have stems; non-flowering plants do not have stems
B- flowering plants are green; non-flowering are white or brown
C- flowering plants reproduce through seeds; non-flowering plants reproduce through cones or spores
D- flowering plants have roots and need water; non-flowering plants don't have roots
C- flowering plants reproduce through seeds; non-flowering plants reproduce through cones or spores
How does the cactus survive in the climate of a hot, dry desert?
A- The cactus flowers at night allow bats to drink the nectar.
B- The ribs of the cactus expand to store water in the trunk.
C- The cactus grows very slowly, so it does not have difficulty in the heat.
D- The spines on a cactus protect it from being eaten by animals.
B- The ribs of the cactus expand to store water in the trunk.
Mr. Frost has an aquarium in his classroom. Which of the organisms in the aquarium are consumers?
A- the different plants
B- the snails, fish, and turtles
C- the plants and snails
D- the plants and turtles
B- the snails, fish, and turtles