HESI A2 Biology Test Latest Update
(25 Questions)
Step-by-step Answer Explanations
PASS GUARANTEE
, 1. 1. Question
Which of the following is the least inclusive level of classification?
Species
Kingdom
Phylum
Family
Answer:
Species
The correct order of classification from most inclusive to least inclusive is:
Species is the least inclusive level and defines a group of individuals that can interbreed and
produce fertile offspring.
, 2. 2. Question
Which of the following is a characteristic of all living organisms?
Having a nervous system
Producing flowers
Ability to fly
Being made up of cells
Answer:
Being made up of cells
The correct answer is Being made up of cells. This is a fundamental characteristic of all living
organisms, as cells are the basic unit of life. Whether an organism is unicellular (composed of a
single cell) or multicellular (composed of many cells), all living things have a cellular structure.
o Ability to fly is incorrect because only certain animals, such as birds and insects,
have evolved the ability to fly. It is not a characteristic of all living organisms.
o Having a nervous system is also incorrect. While many animals have a nervous
system to respond to their environment, not all living organisms have this
feature. For example, plants, fungi, and many single-celled organisms do not
possess a nervous system.
o Producing flowers is specific to flowering plants (angiosperms) and does not
apply to all living organisms. Other plants, such as ferns and mosses, as well as all
animals and fungi, do not produce flowers.
3. 3. Question
Why is water considered a polar molecule?
It has equal sharing of electrons.
It forms ionic bonds.
It has an uneven distribution of charges.
It has a high specific heat.
(25 Questions)
Step-by-step Answer Explanations
PASS GUARANTEE
, 1. 1. Question
Which of the following is the least inclusive level of classification?
Species
Kingdom
Phylum
Family
Answer:
Species
The correct order of classification from most inclusive to least inclusive is:
Species is the least inclusive level and defines a group of individuals that can interbreed and
produce fertile offspring.
, 2. 2. Question
Which of the following is a characteristic of all living organisms?
Having a nervous system
Producing flowers
Ability to fly
Being made up of cells
Answer:
Being made up of cells
The correct answer is Being made up of cells. This is a fundamental characteristic of all living
organisms, as cells are the basic unit of life. Whether an organism is unicellular (composed of a
single cell) or multicellular (composed of many cells), all living things have a cellular structure.
o Ability to fly is incorrect because only certain animals, such as birds and insects,
have evolved the ability to fly. It is not a characteristic of all living organisms.
o Having a nervous system is also incorrect. While many animals have a nervous
system to respond to their environment, not all living organisms have this
feature. For example, plants, fungi, and many single-celled organisms do not
possess a nervous system.
o Producing flowers is specific to flowering plants (angiosperms) and does not
apply to all living organisms. Other plants, such as ferns and mosses, as well as all
animals and fungi, do not produce flowers.
3. 3. Question
Why is water considered a polar molecule?
It has equal sharing of electrons.
It forms ionic bonds.
It has an uneven distribution of charges.
It has a high specific heat.
