Levels of Organization
A __________ is the smallest unit that can perform all the processes necessary for life.
Cell
A kidney belongs to the __________ system.
excretory
The __________ system absorbs nutrients.
Digestive
1 Nervous System
2 Spinal Cord Organ
3 Nerve Cell
4 Nerve Tissue
List the numbers in the correct organization of the human body, from simplest to most complex.
3, 4, 2, 1
The __________ is the control center of the cell.
nucleus
A group of tissues that work together to perform a specific function is called an
Organ
Lymph nodes belong to the __________ system.
immune/lymph
The __________ system transports oxygen and nutrients to every cell in the body.
cardiovascular/respiratory
The human body contains over 3 trillion cells. Each cell needs energy to function. Which organ AND system is MOST responsible for ensuring the nutrients in the food we eat are transported to every cell in the body?
heart; circulatory
The __________ controls what enters and leaves the cell.
cell membrane
A group of cells that work together to perform a specific job is called a __________.
Tissue
The brain and spinal cord belong to the __________ system.
nervous
The _________ system removes liquid waste from the body.
excretory
A student has a robotic vacuum cleaner at his house. It turns on at the push of a button. It changes direction when it senses it is getting near a wall and changes its power level when it goes from carpet to hardwood floor. It is able to learn the location of stairs and drop-offs in the house so it does not fall down. The robot vacuum even returns to its charging station when its energy level is low to recharge. Is the robot alive or not and why?
The robot vacuum is not alive because it is not made of cells and cannot reproduce.
The __________ stores materials and waste.
vacuole
A group of organs that work together to perform a specific function is called an
Organ System
You are watching the baseball World Series with your friends and you are amazed at how anyone can hit a fastball. You are arguing with your friends about which systems are most important in hitting the ball. Your friend said the nervous system is involved. Accurately provides evidence to help support your friend’s claim.
The brain and spinal cord send messages to the muscles in the arm to swing the bat.
Students were engaged in an argument about major body system interactions that maintain homeostasis in humans. They discussed that when an individual has a common cold, at least two major human body systems interact more to maintain homeostasis. Which student has the BEST argument for how body systems work together to help an individual recover from an illness?
The immune system fights infections and the cardiovascular system transports white blood cells in the blood.
On a train, the conductor controls the speed of the train and decides when and where it stops. The train doors allow passengers and materials to get in and out of the train. The dining car makes food for the passengers. The luggage car stores luggage, freight, and other materials. The locomotive engine provides power for the train to run. The conductor could be compared to which organelle in the cell?
nucleus
The __________ creates food for plant cells.
chloroplast
Which group demonstrates the organization of living things, from smallest to largest?
A. student, classroom, grade level, school, school district
B. team, sporting event, player, league, association
A. student, classroom, grade level, school, school district
Some students were discussing running a mile in PE class. The students all agreed that the cardiovascular system was very important, but they could not agree on what other system was important. Make a claim that highlights the importance of the cardiovascular system and identifies another body system involved. Explain why both systems are important for successfully completing the mile.
The respiratory system was also important because it brings oxygen into the body while running, which the cardiovascular system transports to all the cells.
A patient comes to the doctor’s office complaining they often feel weak and unable to complete daily tasks like going up and down stairs or sweeping the floor without becoming tired and out of breath. The doctor asks the patient a number of questions and runs several tests to try to determine what is wrong. What is the BEST claim supported by evidence that explains the reason for how the patient was feeling?
A respiratory infection is affecting breathing, keeping oxygen from getting to muscle cells, which are not able to move the body as well.
Lysosomes are important organelles within a cell. What would MOST LIKELY happen if a cell’s lysosomes were not functioning properly?
The cell would be damaged by the waste buildup inside the cell.
The __________ is a jelly-like liquid that fills the cell and holds organelles.
cytoplasm