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An animal's brain controls many of the animal's activities. Which organelle has the same function in a cell?  

• the cell membrane
• a vacuole
• a mitochondrion
• the nucleus

The cells of complex multicellular organisms are organized into structures. What is the order of these structures from least complex to most complex?  

 A) cell, organ, tissue, organ system, organism
 B) cell, organism, organ system, organ, tissue
 C) cell, tissue, organ, organ system, organism
 D) tissue, cell, organism, organ, organ system

• cell, organ, tissue, organ system, organism
• cell, organism, organ system, organ, tissue
• cell, tissue, organ, organ system, organism
• tissue, cell, organism, organ, organ system

The picture illustrates a

• Prokaryotic Plant Cell
• Prokaryotic Animal Cell
• Eukaryotic Plant Cell
• Eukaryotic Animal Cell

releases energy for cells to use, most common in animal cells

• mitochondria
• ribosomes
• lysosomes
• nucleolus

What do viruses need to reproduce?

• they need genetic material
• They need a host cell
• They need  bacteria
• They need insulin

The projections on the surface of this virus allow the virus to —

• move inside a host cell
•  attach to a host cell
• control a host cell’s DNA
• signal other viruses to infect a host cell

What part of a virus is the protein capsule that houses the genetic material (DNA/RNA)?

• tail
• nucleus
• capsid
• glycoprotein

Which viral life cycle kills its host cell by lysing?

• lytic
• mitosis
• lysogenic
• S phase

Which viral life cycle allows viral genetic material to lay dormant while the host cell reproduces?

• lytic
• mitosis
• lysogenic
• S phase

Viruses are...

• prokaryotic
• eukaryotic
• non-living
• endospores