Levels of Organization in Life review

What is the basic unit of life in both plants and animals?

• Tissue

• Cell

• Organ

• Organism

Answer explanation

The basic unit of life in both plants and animals is the cell. Cells are the smallest structural and functional units, making them essential for all living organisms.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Which of the following correctly describes the relationship between tissues and organs?

• Tissues are made up of organs

• Organs are made up of tissues

• Tissues and organs are the same

• Organs make up tissues

Answer explanation

The correct choice is 'Organs are made up of tissues' because tissues are groups of similar cells that perform a specific function, while organs are structures composed of different types of tissues working together to perform complex functions.

Identify the correct sequence of organization in living organisms from simplest to most complex.

• Organism, Organ System, Organ, Tissue, Cell

• Cell, Tissue, Organ, Organ System, Organism

• Tissue, Cell, Organ, Organ System, Organism

• Organ System, Organism, Cell, Tissue, Organ

Answer explanation

The correct sequence from simplest to most complex is: Cell, Tissue, Organ, Organ System, Organism. This reflects the hierarchical organization in living organisms, where each level builds upon the previous one.

Tags

NGSS.MS-LS1-3

Explain why the failure of one organ system can affect the entire organism.

• Because organ systems work independently

• Because organ systems are interconnected and rely on each other

• Because organs are not important for survival

• Because tissues can function without organs

Answer explanation

Organ systems are interconnected and rely on each other to maintain homeostasis. If one system fails, it can disrupt the functions of others, leading to a cascade of failures that affect the entire organism.

Tags

NGSS.MS-LS1-3

Which of the following is an example of an organ system?

• Heart

• Digestive System

• Muscle

• Blood

Answer explanation

The Digestive System is an organ system that includes organs like the stomach and intestines working together to process food. In contrast, the heart, muscle, and blood are components of other systems, not complete systems themselves.

How do cells contribute to the function of an organ system?

• Cells form tissues that perform specific functions within an organ

• Cells directly form organ systems without forming tissues

• Cells are not involved in organ systems

• Cells only form organs, not tissues

Answer explanation

Cells contribute to organ systems by forming tissues, which are groups of similar cells that work together to perform specific functions within an organ, thus supporting the overall function of the organ system.

Tags

NGSS.MS-LS1-3

Predict what might happen if the tissue in an organ is damaged.

• The organ will continue to function normally

• The organ may fail, affecting the entire organ system

• The organ system will become stronger

• The organism will not be affected

Answer explanation

If tissue in an organ is damaged, the organ may not function properly, leading to potential failure. This can disrupt the entire organ system, as organs work together to maintain homeostasis.

Tags

NGSS.MS-LS1-3

Which statement best describes the role of tissues in the body?

• Tissues are groups of similar cells that perform a specific function

• Tissues are the largest units of organization in the body

• Tissues are made up of organ systems

• Tissues are not important for organ function

Answer explanation

The correct statement is that tissues are groups of similar cells that perform a specific function. This highlights the fundamental role of tissues in the body, as they work together to carry out specialized tasks.

Tags

NGSS.MS-LS1-3

What is the relationship between an organ and an organ system?

• An organ system is a group of organs that work together to perform a specific function

• An organ is a group of organ systems that work together

• An organ system is smaller than an organ

• An organ system is not related to organs

Answer explanation

An organ system consists of multiple organs that collaborate to carry out a specific function, making the first answer choice correct. The other options misrepresent the relationship between organs and organ systems.

The human body has different levels of organization. Match the different levels of organization of the human body to the different levels of the NHL. The NHL​ (a)   The Boston Bruins​ (b)   The offense or the defense​ (c)   the two goalies​ (d)   Jeremy Swayman (he is just the one goalie)​ (e)  

• Organism

• Organ System

• organ

• tissue

• cell

• mitochondria

• cell membrane

Tags

NGSS.MS-LS1-3