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Khan Academy - Organization of Multicellular Organisms

Authored by Karen Nordai

Science

7th Grade

NGSS covered

Used 6+ times

Khan Academy - Organization of Multicellular Organisms
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10 questions

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1.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

The smallest level of life is the (a)   .

Tags

NGSS.MS-LS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The ____ is also called the basic building block of life in organisms.

Atom

Tissue

Cell

Molecule

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a multicellular organism?

an organism with one cell

an organism with many cells

an organism where organelles replace organs

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

I keep hearing two different words: nuclei and nucleus! What's the difference?

Nothing! They are both the same organelle.

Nuclei is the single form. Meaning just one.

Nucleus is the plural form. It is referring to more than one.

All of these answers are true!

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does it mean for cells to be specialized?

They have a specific shape to help them perform a certain job. (Form fits function!)

An example includes how red blood cells are shaped to fit into our blood vessels.

An example includes how neurons (nerve cells) extend in our body to transmit signals to our brain.

All of these answers are correct!

Tags

NGSS.MS-LS1-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

 A group of cells that have similar functions? Examples are nervous, epithelial, and muscle.

cells
tissues
organs
atoms

Tags

NGSS.MS-LS1-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are multicellular organisms organized?

They're not!

The organization of cells, tissues, organs, and systems in a hierarchy, which means smallest to biggest!

The arrangement of cells in a linear order

The random distribution of cells in an organism

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