8 Body Systems - Uni & Multicellular

Based on this image, is the Euglena unicellular or multicellular?

• 1. unicellular

• 2. multicellular

The majority of living organisms on Earth can be classified as _______.

• plants

• unicellular

• mammals

• insects

Which of the organisms below performs all life processes in one cell?

• grass

• bacteria

• mushroom

• butterfly

Molly is reading a book in science class. She reads one sentence that says, “This organism is capable of surviving as a single cell.” Which organism is she most likely reading about?

• amoeba
• flower
• mushroom
• insect

Tags

NGSS.MS-LS1-1

Yeast and bacteria are both types of single-celled organisms. What do they most likely have in common?

• They are both large organisms.

• They can carry out all life functions in their one cell.

• They need sunlight and nutrients from the soil to be able to grow.

• They are highly specialised to do only one job so they must work with other cells to obtain food.

Multicellular organisms are made of:

• one cell

• more than one cell

Which best describes a multicellular organism?

• basic

• simple

• uniform

• complex

The MAIN job of most cells in multicellular organisms is to:

• keep themselves alive.

• keep the organism alive.

• release un-needed materials.

• store needed materials.

Unicellular and multicellular organisms both:

• need food for energy and growth.

• have a skeletal system for support.

• require the interaction of many cells to survive.

• are able to carry out all life functions in only one cell.

A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision?

• size of its cells

• what it eats

• how many types of cells it has

• how fast it grows