The basic unit of structure and function in living things.
100
The bones and cartilage of your skeleton are made of what kind of tissue?
Connective Tissue
100
What is the major organ of the rspiratory system?
The lungs.
100
This system includes mainly bones, gives your body form and protects many of your organs.
The skeletal system.
100
What are cells that work together to perform a certain function form?
Tissue
200
What is found in plant cells but not in aminal cells?
Cell walls and chloroplasts
200
Your heart is mostly made of ______________ tissue.
Muscle tissue.
200
Where in the lungs does gas exchange occur?
In the alveoli, or air sacs.
200
What system includes muscles and tendons that move bones?
The muscular system.
200
Several kinds of tissue working together for the same function is called?
Organ
300
What directs a cell's acitivities?
Nucleus
300
What is plasma?
Liquid part of the blood.
300
What are the symptoms of a person who might have Bronchitis or Pneumonia?
A person who has Bonchitis or Pneumonia might have symptoms like shortness of breath, constant coughing, and/or wheezing when breathing.
300
This system enables you to sense your environment and to react to it.
The Nervous System
300
This system breaks food down into nutrients that body cells need?
Digestive System
400
Why are cells so specialized?
They are specialized because they perform specific functions which helps the body to become very complex and efficient.
400
What type of tissue conects the joint in your knee?
Connective Tissue
400
How would the buildup of fluids in the alveoli affect lung function?
Fluid within the alveoli would create a problem for the (oxygen and carbon dioxide) gas exchange. This would affect the levels of oxygen and carbon dioxide in the body.
400
Wastes such ammonia are removed from the body by what system?
Excretory System
400
This system is made up of the heart, the bood vessels, and the blood.
Circulatory System
500
How are organelles in a cell similar to organs in a human body?
Both organelles and organs help to keep the body alive. They both carry out specific functions. The difference is the organelleis work in a cell and the organs work in the body as a whole.
500
The skin is the largest body organ, has multiple functions, and has most or all tissue types. Name four kinds of tissues that make up the skin.
Epithelial, muscle, connective, and nervous tissue.
500
What part of the nervous system is bypassed in a reflex action?
The Brain is bypassed in a reflex action.
500
What organs carry oxygen-poor blood from the heart to the lungs?
The pulmonary arteries.
500
This system is a group of organs and tissues that exchange oxygen and carbon dioxide between the body and the environment.