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What is the body system that is made up of the framework of bones that supports an organism's body, protects its internal structures and allows it to move?
Skeletal system
What is a typically self-contained structure that carries out a particular function in the body?
Organ
What is the body system made up of the organs that get rid of waste?
Excretory system
What is the body system made up of the organs that bring oxygen into the body and remove carbon dioxide waste?
Respiratory system
What is the body system made up of the organs that allow adults to produce offspring?
Reproductive system
What is the body system made up of the heart and blood vessels that circulates blood through the body?
Circulatory system
What is the body system made up of organs that break down food into substances that can be absorbed and used for energy and gets rid of solid waste that cannot be absorbed?
Digestive system
What is the body system made up of all the muscles of the body that cause movement when they contract or shorten?
Muscular system
What is a thin slice of an organ or tissue made by cutting through it?
Cross section
What is the smallest unit of life that has a distinct shape and function?
Cell
What is a group of structurally similar cells that work together to perform a specific function and is a level of organization above cells?
Tissue
What is the enlarged appearance of an object when viewed through a microscope?
Magnification
What is the body system that collects and responds to information from inside and outside of the body and consists of the brain, spinal cord, and a network of nerves?
Nervous system
A body system is a group of organs that...
Work together to perform a particular function in the body.
What role does the esophagus play in the digestion of food?
The esophagus has muscles that push food into the stomach.
Which of these is a major function of the excretory system?
The excretory system regulates the amount of water in the body.
Which systems deliver oxygen to the muscles?
The respiratory system and the circulatory system
The shell of a snail is similar to which body system of a human?
Skeletal system
How is a plant's "respiratory system" different from that of a human?
A plant's respiratory system takes in carbon dioxide and releases oxygen
Which of these is a benefit of scientists using models to learn about body systems?
Scientists can use model organisms to understand disease in many different organisms
Which of these is a reason dissecting bodies has been informative to scientists?
Dissecting bodies is helpful to learn about body structures
What did the invention of the microscope allow early microscope users to see?
It allowed them to see that there are tiny organisms all over
Which of these is true of a cell?
A cell is generally colorless, the smallest unit of life, and has a distinct shape and function
Which of these is not true of a tissue? (
Tissue can only form in internal organs
What is the benefit of taking a cross section of an organ or a tissue?
It allows scientists to study the inside structure of an organ or tissue
_____ are the smallest level of organization in the human body considered to be living.
Cells
Which of these is not one of the four major types of tissues?
Adamantial
Which of these is an organ?
A single bone
Which of these is the highest level of organization for the body?
An organism
How can you tell the difference between different types of cells in the human body?
Different types of cells have different shapes that are suited to their functions
Why do tissues that are part of the same body look different?
The tissues look different because they perform different tasks.
What is one benefit of having folded tissues absorb nutrients?
Folded tissue has more surface area to absorb nutrients than flat tissue.
What is unique about the body system of a sponge?
Sponges have no true tissues
Which parts of the reproductive system produce sperm and eggs?
Ovaries produce eggs, testes produce sperm
What structures inside our body help support and protect us?
Bones
What body systems are bones and muscles part of?
Bones are part of the skeletal system and muscles are part of the muscular system
If an organism's highest level of organization is tissues, what levels of organization does it have?
Cells and tissues
If an organism's highest level of organization is tissues, what levels of organization does it NOT have?
Organs and body systems
Which levels of organization require magnification to be observed?
Cells and tissues
Which levels of organization do NOT require magnification to be observed?
Organs, body systems and organism
What are tissues made up of?
Structurally similar cells
What are organs made up of?
Different types of tissues
What are organ systems made up of?
Groups of organs
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