Biology
Increased surface area promotes diffusion. Which of the structures below increases surface area to promote diffusion?
Alveoli
Which of the following is the female reproductive structure of a flowering plant?
Carpel
What is the main purpose of the digestive system?
Provide nutrients to the body
Which of these is NOT a function of the skeletal system?
Provide oxygen
What is the main purpose of the nervous system?
Response to the environment
Where is the place in the lungs where gas exchange occurs?
The alveoli
What is the main organ of the excretory system?
The kidneys
All organisms have to maintain homeostasis and bring oxygen to body cells. To accomplish this task they have some sort of respiratory system. Which best describes the systems you might find in various organisms for bringing in oxygen?
The systems have different structures but similar functions
The structure in the small intestine that increases the rate of passage of nutrients from the digestive system into the blood is ___________________.
Villi
Which of these structures is responsible for transporting water from plant roots to the rest of the plant?
Xylem
Why does your heart rate go up when you run?
You need more oxygen to run
What is the name of the structure marked "A" in this diagram?<img src="https://nlcda.instructure.com/courses/119/files/1193/preview" alt="Biology2-1.jpg"/>
aorta
What is the name of the structure marked "D" in this diagram?<img src="https://nlcda.instructure.com/courses/119/files/1193/preview" alt="Biology2-1.jpg"/>
cardiac muscle
What is the organizational hierarchy found in complex organisms from smallest to largest?
cells, tissues, organs, systems
This drawing shows a cross section of a plant leaf. How does the component marked X contribute to the survival of the plant?<img src="https://nlcda.instructure.com/courses/119/files/1197/preview" alt="Biology2-2.jpg"/>
it allows the intake of gases necessary for photosynthesis
What is the name of the structure marked "B" in this diagram?<img src="https://nlcda.instructure.com/courses/119/files/1193/preview" alt="Biology2-1.jpg"/>
pulmonary vein
What is the name of the tube surrounded by cartilage that leads to your lungs?
trachea
What is the name of the structure marked "C" in this diagram?<img src="https://nlcda.instructure.com/courses/119/files/1193/preview" alt="Biology2-1.jpg"/>
valve
Which of the following best describes the ability of technological devices to take the place of real organs? The artificial organ:
works well enough for people to have a reasonable quality of life