What vocabulary word means "the most basic unit of a living organism"?
a. cytoplasm
b. invertebrates
c. cells
d. vertebrates
c. cells
Why are nonvascular plants small and grow close to the ground?
a. they are scared of the sun
b. they do not have roots, stems, or leaves to transport water
b. they do not have roots, stems, or leaves to transport water
Scientists classify clams, squids, and octopuses as
a. vertebrates
b. reptiles
c. mollusks
d. mammals
c. mollusks
What vocabulary word means "animals with backbones"?
a. vertebrates
b. genus
c. invertebrates
d. cell
a. vertebrates
How are organs and organ systems related?
a. a group of organs work together to make up an organ system
b. organs carry the blood to the organ systems
a. a group of organs work together to make up an organ system
Offspring inherit some behaviors and learn others. Which behavior is learned?
a. a snake hibernating
b. a sea turtle digging a hole on the beach for its eggs
c. an amphibian migrating
d. a guide dog helping a person who is visually impaired
d. a guide dog helping a person who is visually impaired
What vocabulary word means "an animal without a backbone"?
a. cell
b. invertebrates
c. chloroplast
d. vertebrates
b. invertebrates
How would animal life be different if animal cells had chloroplasts?
a. all animals would be green
b. animals could make their own food
b. animals could make their own food
Which is NOT true about an animal cell?
a. a cell wall surrounds it.
b. a thin outer membrane surrounds it.
c. it has a nucleus
d. a gel like liquid is inside the cell
a. a cell wall surrounds it
What vocabulary word means "a gel like liquid inside a cell"?
a. cell
b. genus
c. nucleus
d. cytoplasm
d. cytoplasm
If the outdoor temperature increased by 10 degrees, what would happen to a reptile's body temperature?
a. the reptile's body temperature would increase
b. the reptile would die
a. the reptile's body temperature would increase
In the winter, a bird's feather turn white. This is an example of
a. hibernation
b. adaptation
c. classification
d. migration
b. adaptation
What vocabulary word means "a cell part that plants use to make food."
a. chloroplast
b. species
c. nucleus
d. genus
a. chloroplast
What invertebrate has jointed legs, a segmented body, and an exoskeleton?
a. sponge
b. arthropod
b. arthropod
What type of animal may be protected by a hard shell?
a. mammal
b. vertebrate
c. plant
d. invertebrate
d. invertebrate