Characteristics of Life
Living organisms are made up of:
a) Cells
b) Gasses
c) Rocks
d) Liquids
a) Cells
What is the primary characteristic that distinguishes vertebrates from invertebrates?
a) Presence of fur
b) Backbone
c) Number of legs
d) Type of skin
b) Backbone
What is the control center of an animal cell?
a) Mitochondria
b) Nucleus
c) Ribosome
d) Cytoplasm
b) Nucleus
What is the outermost layer of a plant cell?
a) Cell membrane
b) Cell wall
c) Nucleus
d) Mitochondria
b) Cell wall
Which human body system includes the lungs and is responsible for gas exchange?
a) Respiratory system
b) Digestive system
c) Muscular system
d) Endocrine system
a) Respiratory system
Which is an example of a multicellular organism?
a) Bacterium
b) Amoeba
c) Human
d) Virus
c) Human
Mammals are classified based on which characteristic?
a) Laying eggs
b) Cold-blooded
c) Giving birth to live young
d) Feathers
c) Giving birth to live young
What structure surrounds and protects an animal cell?
a) Cell wall
b) Cell membrane
c) Cytoplasm
d) Nucleus
b) Cell membrane
Which organelle is responsible for photosynthesis?
a) Mitochondria
b) Ribosome
c) Chloroplast
d) Nucleus
c) Chloroplast
Which system in the human body is responsible for transporting blood throughout the body?
a) Nervous system
b) Respiratory system
c) Circulatory system
d) Digestive system
c) Circulatory system
All living organisms respond to:
a) Light
b) Temperature
c) Stimuli
d) Air
c) Stimuli
Which of the following is an example of an invertebrate?
a) Lion
b) Fish
c) Worm
d) Bird
c) Worm
The fluid that fills the inside of the cell and holds organelles in place is called:
a) Cytoplasm
b) Nucleus
c) Golgi apparatus
d) Lysosome
a) Cytoplasm
The large central structure in plant cells that stores water is called the:
a) Vacuole
b) Chloroplast
c) Golgi apparatus
d) Nucleus
a) Vacuole
The central nervous system is made up of which two main parts?
a) Brain and lungs
b) Brain and spinal cord
c) Heart and spinal cord
d) Lungs and liver
b) Brain and spinal cord
Which of the following is NOT a characteristic of life?
a) Growth
b) Reproduction
c) Photosynthesis
d) Metabolism
c) Photosynthesis
Animals that lay eggs and have scaly skin belong to which class?
a) Mammalia
b) Reptilia
c) Amphibia
d) Aves
b) Reptilia
The powerhouses of the cell, responsible for producing ATP, are called:
a) Nucleus
b) Ribosomes
c) Mitochondria
d) Golgi apparatus
c) Mitochondria
Plant cells contain which pigment that allows them to absorb sunlight?
a) Carotene
b) Chlorophyll
c) Hemoglobin
d) Myoglobin
b) Chlorophyll
Which body system works to defend the body against infections and harmful organisms?
a) Immune system
b) Digestive system
c) Respiratory system
d) Circulatory system
a) Immune system
Growth in living organisms occurs due to:
a) Reproduction
b) Increase in cell size and number
c) Decrease in cell number
d) Cellular death
b) Increase in cell size and number
Which of the following is a characteristic of all arthropods?
a) Fur
b) Exoskeleton
c) Internal skeleton
d) Wings
b) Exoskeleton
Which of the following organelles is involved in waste breakdown?
a) Golgi apparatus
b) Lysosome
c) Ribosome
d) Nucleus
b) Lysosome
What structure helps in the transport of materials throughout the plant cell?
a) Mitochondria
b) Endoplasmic reticulum
c) Ribosomes
d) Golgi apparatus
b) Endoplasmic reticulum
Which system is primarily responsible for producing hormones in the human body?
a) Digestive system
b) Endocrine system
c) Nervous system
d) Immune system
b) Endocrine system