TCI 2.4

What is a defining characteristic of a multicellular organism?

• It is made of only one cell.

• It is a nonliving particle.

• It is made up of many cells.

• It can only be seen with a microscope.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

Which of the following is an example of a unicellular organism?

• Mushroom

• Human

• Plant

• Bacterium

Tags

NGSS.MS-LS1-1

What does it mean for cells in a multicellular organism to be "specialized"?

• All cells look and function exactly the same.

• Each cell can survive completely on its own.

• Each kind of cell has a specific shape and job.

• The cells are able to infect other organisms.

Tags

NGSS.MS-LS1-3

According to the text, how do most unicellular organisms reproduce?

• By finding a mate

• By dividing into two, creating a new organism

• By infecting a host cell

• By growing new parts during development

Tags

NGSS.MS-LS3-2

Who were the two scientists primarily responsible for developing the cell theory in the 1830s?

• Watson and Crick

• Darwin and Wallace

• Schleiden and Schwann

• Newton and Galileo

Which of the following is NOT one of the three main parts of the cell theory?

• All living things are made of one or more cells.

• All cells have a nucleus.

• All cells come only from existing cells.

• The structure and function of an organism is determined by its cells working together.

How does a virus make copies of itself?

• By dividing in two on its own.

• By using the machinery of a living host cell.

• By absorbing nutrients from the environment.

• By combining with another virus.

Why are antibiotics ineffective against viruses?

• Viruses are too large for antibiotics to affect.

• Antibiotics only kill living things, and viruses are nonliving.

• Viruses have a strong outer wall that antibiotics cannot penetrate.

• Viruses reproduce too quickly for antibiotics to work.

What is the main difference between a bacterium and a virus?

• A bacterium is a living cell, while a virus is a nonliving particle.

• Viruses are always larger than bacteria.

• Bacteria make you sick, but viruses do not.

• Bacteria can be treated with vaccines, but viruses cannot.

The prefix "uni-" in unicellular means:

• Many

• Small

• One

• Life

Tags

NGSS.MS-LS1-1