Circulatory/ respiratory
These blood vessels carry blood away from the heart.
arteries
This part of the nervous system connects the brain to the rest of the body.
spinal cord
Digestion begins in this part of the body.
the mouth
WNS causes damage to tissue on the wings, ears, and noses of bats. Which of the following processes most directly helps repair this damaged tissue?
A active transport
B lipid storage
C meiosis
D mitosis
D mitosis
Identify the two main gases that are exchanged between the respiratory and circulatory systems.
co2 and 02
what is the heart responsible for in the body
pumping blood throughout the body where it carries nutrients and waste products
cells of the nervous system are called?
neurons
what type of digestion happens in the stomach?
chemical and mechanical
Which of the following describes how the liver interacts with the circulatory system?
A It supplies oxygen to the blood.
B It redirects blood flow in the body.
C It produces hemoglobin for red blood cells.
D It converts toxic compounds in blood to less toxic compounds.
D It converts toxic compounds in blood to less toxic compounds.
Which two body systems carry signals from one part of the body to another part of the body?
A. circulatory and nervous
B. digestive and respiratory
C. excretory and circulatory
D. excretory and nervous
A. circulatory and nervous
This muscle contracts to help the lungs fill with air
diaphragm
These organs filter blood and produce urine
the kidneys
where nutrient absorption takes place
small intestine
The diagram shows a pathway in the human body.
Internal or external stimulus -->X -->Spinal cord --> Brain
Which structure is most likely represented by the X in the pathway?
A blood vessel
B endocrine gland
C sensory neuron
D smooth muscle
C sensory neuron
The list below shows some processes that take place during and after digestion in the human body. Each numbered process takes place in a different organ of the digestive system.
1. Food is transported to another organ. 2. Wastes are eliminated from the body. 3. Food is mechanically broken down into smaller parts; some foods are also broken down chemically. 4. Macromolecules are chemically broken down into simpler molecules. 5. Simple molecules are absorbed into the circulatory system. Which of the following shows the order of the processes that take place after food enters the mouth?
A. 1 → 2 → 3 → 4 → 5
B. 3 → 1 → 4 → 5 → 2
C. 4 → 3 → 2 → 1 → 5
D. 3 → 5 → 1 → 4 → 2
B. 3 → 1 → 4 → 5 → 2
This tube connects the throat to the lungs.
trachea
This organ acts as the control center of the nervous system.
the brain
what is the difference between chemical and mechanical digestion
Mechanical digestion involves physically breaking down food into smaller pieces through actions like chewing, while chemical digestion uses enzymes to break down the complex molecules in food into smaller, absorbable components
People with the CFTR mutation often experience digestive problems, which can result in weight loss. Which of the following most likely occurs as a result of the digestive problems?
A A large amount of sugar enters the bloodstream.
B A large amount of oxygen is released to body cells.
C Many nutrients are not absorbed into the bloodstream.
D Salt is not absorbed quickly enough by the large intestine.
C Many nutrients are not absorbed into the bloodstream.
The digestive system breaks down carbohydrates, fats, and proteins into smaller molecules. These smaller molecules are used for which of the following?
A. cellular respiration only
B. cellular respiration and cell repair only
C. cellular respiration and cell growth only
D. cellular respiration, cell repair, and cell growth
D. cellular respiration, cell repair, and cell growth
Location of gas exchange in the lungs
alveoli
The nervous system can be broken up into 2 parts
CNS - central nervous system and PNS - peripheral nervous system
This muscular movement pushes food through the digestive tract.
peristalsis
In a sample of double-stranded DNA, 20% of the nitrogenous bases are adenine (A). What percentage of the nitrogenous bases in the sample are cytosine (C)?
A 10%
B 30%
C 60%
D 80%
B 30%
Explain why the branching of the air passageways in the lungs is important for efficient respiratory system functioning.
The branching of the airways maximizes surface area, ensures even air delivery, and promotes efficient gas exchange—making breathing and oxygen delivery to the body much more effective.