Focus On Life Science: California Grade 7

Lesson 2: Levels of Organization

Standards Check

1.
The process in which cells become different kinds of cells is _______. 1.f
A)cell differentiation
B)cell cycle
C)specialized cell
D)connective cells
2.
Which is often true of differentiated cells? 1.f
A)They function the same as other cells.
B)They have structures that are different from other cells.
C)They have the same shape as other cells.
D)They are identical to other cells.
3.
A multicellular organism has ________. 5.a
A)simple organization
B)a single cell
C)complex organization
D)organelles without membranes
4.
Which of the following is NOT an organ? 5.a
A)the heart
B)skin
C)bones
D)blood tissue
5.
Put the level of organization in order from smallest to largest. 5.a
A)organs, tissues, cells, and organ system
B)organ system, organs, tissues, and cells
C)cells, tissues, organs, and organ systems
D)cells, organs, tissues, and organ systems
6.
Groups of similar cells that all do the same sort of work are called __________. 5.a
A)organs
B)tissues
C)organ systems
D)cell systems
7.
Which of the following is an organ? 5.a
A)nerve tissue
B)stomach
C)blood tissue
D)muscle tissue
8.
Palm trees and pandas have __________. 5.a
A)a single cell
B)cells of only one size
C)prokaryotic cells
D)eukaryotic cells
9.
__________ is a group of similar cells that work in unison to perform one function. 5.a
A)A tissue
B)A lysosome
C)A vacuole
D)A nucleus
10.
If a group of organs work together to perform a specific job, what are they called? 5.a
A)an organism
B)an organ system
C)helper organs
D)tissue systems
Grade 7
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