A) It allows organisms to reproduce
B) It provides food and water
C) It offers shelter and space
D) All of the above

A) Ability to change color
B) Growth, movement, and reproduction
C) Inability to respond to stimuli
D) Lack of reproduction

A) Both plant and animal cells have the same structure
B) Plant cells have chloroplasts and a cell wall, animals don’t
C) Animal cells have a cell wall, plant cells don’t
D) Animals have chloroplasts, plants don’t

A) Changes that increase survival chances
B) Moving to different habitats
C) Growing larger than predators
D) The ability to fly

A) Energy remains constant
B) Energy flows in one direction from the sun to producers and consumers
C) Energy moves in a circular pattern
D) Energy flows back to the producers

A) It is the process of plants absorbing oxygen
B) It is how plants convert sunlight into food
C) It is how plants break down food into energy
D) It is the exchange of gases between plants and animals

A) Through competition for food and space AND Through communication and cooperation
B) Through competition for food and space
C) By ignoring one another

A) Ability to run fast
B) Ability to swim
C) Use of language, culture, and tools
D) Ability to grow taller than other species

A) Respiratory system – breaking down food
B) Digestive system – circulation of blood
C) Skeletal system – digestion of food
D) Circulatory system – transport of blood and oxygen

A) Infancy, childhood, adulthood
B) Infancy, adolescence, seniority
C) Childhood, teenage years, middle age
D) Infancy, adulthood, old age