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Levels Of Organization
Test Description: Levels of organization
Instructions: Answer all questions to get your test result.
1) The smallest units of life that make up all living things are -
A
cells
B
organs
C
tissues
D
organ system
2) The stomach, small intestine, and large intestine are all organs. When they work together to process food, they form a functional unit known as -
A
a cell
B
a tissue
C
a system
D
an organism
3) A collection of cells with similar function forms -
A
a tissue
B
an organ system
C
an organism
D
an organ
4) Which of the following correctly orders the organization in plants and animals from least to most complex?
A
Tissues ➔ Cells ➔ Organs ➔ Organisms ➔ Organ Systems
B
Organisms ➔ Organ Systems ➔ Organs ➔Tissues ➔ Cells
C
Organs ➔ Tissues ➔ Organisms ➔ Cells ➔ Organ Systems
D
Cells ➔ Tissues ➔ Organs ➔ Organ Systems ➔ Organisms
5) What is considered to be the lowest level of organization in a multicellular organism?
A
Cell
B
Organ System
C
Tissue
D
Organ
6) Water moves inside plants using xylem, a structure made up of a collection of cells that form the tube-like xylem. Xylem is classified as -
A
An organ system
B
An organ
C
An organism
D
A tissue
7) In humans, the heart is an organ that pumps blood through blood vessels. The combination of the heart and blood vessels is classified as –
A
an organism
B
an organ system
C
an organ
D
a tissue
8) The root and shoot systems in plants work together to form a more complex organization known as -
A
an organism
B
an organ
C
a tissue
D
a cell
9) Group of cells that work together-
A
tissue
B
organ
C
cell
D
organism
10) A living being -
A
organ
B
cell
C
organism
D
tissue
11) Different tissues that perform a task-
A
organ
B
tissue
C
organism
D
cell
12) Sieve-tube cells and companion cells work together to transport sugar and nutrients inside plants. Together, sieve-tube cells and companion cells form -
A
a tissue.
B
an organ system.
C
an organsim.
D
an organ.
13) In the sequence from simplest to most complex level of organization, which level is one level more complex than cells?
A
Tissues
B
Organ Systems
C
Cells
D
Organisms
14) Tissues working together to perform specialized functions are called -
A
Cell
B
Organ
C
organism
D
Organ System
15) The smallest units of life in plants are –
A
Tissues
B
Organs
C
Organ Systems
D
Cells
*select an answer for all questions
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