HESI A2 Biology Test Latest Update
(25 Questions)
Step-by-step Answer Explanations
PASS GUARANTEE
, 1. 1. Question
Which of the following correctly shows the system of classification from most inclusive to
least inclusive?
Species, Genus, Family
Kingdom, Phylum, Class
Class, Order, Family
Family, Genus, Species
Answer:
Kingdom, Phylum, Class
In biology, scientists organize living things into groups to help study and understand them.
These groups range from very broad, including many different organisms, to very specific,
focusing on closely related organisms. The largest and most inclusive group is the Kingdom,
which contains many types of organisms. Each Kingdom is divided into smaller groups called
Phyla (plural of Phylum), based on major traits, like body structure. Within each Phylum,
organisms are further grouped into Classes, which narrows down the classification even more.
The full list from most inclusive to least inclusive is:
1. Domain
2. Kingdom
3. Phylum
4. Class
5. Order
6. Family
7. Genus
8. Species
, So, the correct order from the most inclusive group to the least inclusive in this question is
Kingdom, Phylum, and Class.
Family, Genus, Species → goes from less inclusive to least inclusive.
Species, Genus, Family → reversed order, least to more inclusive.
Class, Order, Family → correct sequence, but it starts in the middle of the hierarchy, not at the
most inclusive.
2. 2. Question
Which of the following lists all the characteristics of life?
Respond to Stimuli, Maintain Homeostasis, Metabolism, Adapt Through Evolution
Made Up of Cells, Ability to Reproduce, Maintain Homeostasis, Grow and Develop, Respond to
Stimuli, Metabolism, Adapt Through Evolution
Ability to Reproduce, Maintain Homeostasis, Respond to Stimuli, Metabolism
Made Up of Cells, Grow and Develop, Adapt Through Evolution, Ability to Reproduce
Answer:
Made Up of Cells, Ability to Reproduce, Maintain Homeostasis, Grow and Develop, Respond
to Stimuli, Metabolism, Adapt Through Evolution
All living things share certain features that define them as “alive.” These features are called the
characteristics of life. To be considered alive, an organism must show all of the following
characteristics:
1. Made Up of Cells: Every living thing, from the smallest bacteria to the largest
plants and animals, is made up of one or more cells. Cells are the basic units of
life, much like tiny building blocks that make up all living organisms. Some
organisms, like bacteria, are made of just one cell, while others, like humans, are
made of trillions.
2. Ability to Reproduce: Living things must be able to reproduce, which means
making more of their kind. Reproduction can happen in two ways:
(25 Questions)
Step-by-step Answer Explanations
PASS GUARANTEE
, 1. 1. Question
Which of the following correctly shows the system of classification from most inclusive to
least inclusive?
Species, Genus, Family
Kingdom, Phylum, Class
Class, Order, Family
Family, Genus, Species
Answer:
Kingdom, Phylum, Class
In biology, scientists organize living things into groups to help study and understand them.
These groups range from very broad, including many different organisms, to very specific,
focusing on closely related organisms. The largest and most inclusive group is the Kingdom,
which contains many types of organisms. Each Kingdom is divided into smaller groups called
Phyla (plural of Phylum), based on major traits, like body structure. Within each Phylum,
organisms are further grouped into Classes, which narrows down the classification even more.
The full list from most inclusive to least inclusive is:
1. Domain
2. Kingdom
3. Phylum
4. Class
5. Order
6. Family
7. Genus
8. Species
, So, the correct order from the most inclusive group to the least inclusive in this question is
Kingdom, Phylum, and Class.
Family, Genus, Species → goes from less inclusive to least inclusive.
Species, Genus, Family → reversed order, least to more inclusive.
Class, Order, Family → correct sequence, but it starts in the middle of the hierarchy, not at the
most inclusive.
2. 2. Question
Which of the following lists all the characteristics of life?
Respond to Stimuli, Maintain Homeostasis, Metabolism, Adapt Through Evolution
Made Up of Cells, Ability to Reproduce, Maintain Homeostasis, Grow and Develop, Respond to
Stimuli, Metabolism, Adapt Through Evolution
Ability to Reproduce, Maintain Homeostasis, Respond to Stimuli, Metabolism
Made Up of Cells, Grow and Develop, Adapt Through Evolution, Ability to Reproduce
Answer:
Made Up of Cells, Ability to Reproduce, Maintain Homeostasis, Grow and Develop, Respond
to Stimuli, Metabolism, Adapt Through Evolution
All living things share certain features that define them as “alive.” These features are called the
characteristics of life. To be considered alive, an organism must show all of the following
characteristics:
1. Made Up of Cells: Every living thing, from the smallest bacteria to the largest
plants and animals, is made up of one or more cells. Cells are the basic units of
life, much like tiny building blocks that make up all living organisms. Some
organisms, like bacteria, are made of just one cell, while others, like humans, are
made of trillions.
2. Ability to Reproduce: Living things must be able to reproduce, which means
making more of their kind. Reproduction can happen in two ways:
