Life Processes
All plants and animals need food. What is the difference between how these two get their food?
Plants make their own food through photosynthesis and animals depend on plants and other animals to get their food.
Which of the following is an example of a single-celled organism?
amoeba, insect, fish, worm
What is amoeba
Which body system sends electrical signals to all other body systems?
What is the nervous system?
Which correctly describes rain forests and deserts?
A. They are aquatic because they have a lot of precipitation.
B. They are terrestrial because they have little precipitation.
C. They are aquatic because they are bodies of water.
D. They are terrestrial because they are on land.
They are terrestrial because they are on land.
Which organisms are most likely to be found in both a pond and a lake ecosystem?
A. algae, fish, insects
B. fungi, trees, squirrels
C. zebras, giraffes, insects
D. plankton, fish, crocodiles
A. algae, fish, insects
What is the smallest unit or building block of a living organism called?
What is a cell.
Molly is reading a book in science class. She reads one sentence that says, "This organism is capable of surviving as a single cell." Which organism is she most likely reading about?
a mushroom, a bacteria, an insect, a flower
What is a bacteria
Which example best shows structures that make up the digestive system in the human body?
A. heart, blood, vessels
B. nose, trachea, lungs
C. brain, spinal cord, nerves
D. esophagus, stomach, intestines
D. esophagus, stomach, intestines
Which is a main difference between a grassland and a forest ecosystem?
A. The amount of trees in a grassland is greater than in a forest.
B. The amount of trees in a forest is greater than in a grassland.
C. The amount of salt water in a grassland is greater than in a forest.
D. The amount of salt water in a forest is greater than in a grassland.
B. The amount of trees in a forest is greater than in a grassland.
A litter of kittens have traits that are similar to both the mother cat and
the father cat. Which best explains this situation?
A. The kittens are provided the same kind of milk from their mother as they grow.
B. The kittens inherit some of their traits from their mother and some from their father.
C. The kittens are kept at the same temperatures by their mother when they are first born.
D. The kittens are taught by their parents to have similar traits.
B. The kittens inherit some of their traits from their mother and some from their father.
What are 5 examples of multicellular organisms?
What are: humans, plants, insects, fish, worms, birds, mammals, reptiles, frogs
How can a paramecium carry out all of life's functions?
By performing all processes in one cell.
Which system of the human body provides protection to most of the major organs?
What is the skeletal system?
In which two ecosystems would you find rattlesnakes, deer, and rabbits?
A. forest and ocean
B. ocean and estuary
C. grassland and forest
D. estuary and grassland
C. grassland and forest
Which best explains why offspring usually look like their parents?
A. Parents choose appropriate characteristics for their offspring.
B. Offspring receive characteristics that have been passed down from their parents.
C. Parents change the appearance of the offspring until they more closely resemble them.
D. Offspring adapt to their surroundings, causing them to develop characteristics similar to their parents.
B. Offspring receive characteristics that have been passed down from their parents.
In order to be considered living, every organism must be able to:
What is breathe, consume food, grow and develop, reproduce, get rid of waste, made of cells
Explain why a human needs many cells to survive.
Each cell works with other cells to perform all necessary life functions.
Why do the other body systems depend on the circulatory system?
It picks up waste materials from other body systems.
What can you say is true about estuary and salt marsh ecosystems?
Organisms live in these ecosystems because they are able to live in brackish water.
Jeremy and Karen are married and decide to have children. Which trait could be inherited by their children?
A. Jeremy’s scar
B. Jeremy’s weight
C. Karen’s broken bone
D. Karen’s cheek dimples
D. Karen’s cheek dimples
In what ways are humans and insects similar?
They are both multicellular organisms.
Which of the following best describes a multi-celled organism?
basic, simple, uniform, complex
What is complex?
When comparing the digestive system and the respiratory system, in your own words what does each do for the body?
The digestive system provides food to cells, while the respiratory system provides oxygen for cells.
Which best describes the ecosystem of a lake or pond?
A. They are aquatic because they are made of land.
B. They are aquatic because they are made of water.
C. They are terrestrial because they are made of land.
D. They are terrestrial because they are made of water.
B. They are aquatic because they are made of water.
Jane has brown wavy hair, works hard in school, plays soccer, and enjoys flying kites. Which characteristic is inherited?
A. wavy hair
B. flying kites
C. playing soccer
D. working hard in school
A. wavy hair