Science Chapter 1

What is the smallest unit of a living thing?

• Virus
• Cell
• Tissue
• Organ

How are plant and animal cells similar?

• Both have a cell wall
• Both form parts of blood vessels
• Both contain chloroplasts
• Both have a cell membrane

What is the job of the nucleus?

• controls cells activities
• traps the Sun's energy for the cell
• separates the cell from its environment
• controls what goes in and out of the cell

Which statement is true of cells?

• Another name for cells is "organ system"
• Each cell in a plant or animal works by itself
• Cells that look similar can have different jobs
• Plant and animal cells have all the same parts

Why would you use a microscope?

• to treat an illness
• to study the small details of a cell
• to count the bones in an animal's body
• to understand how an organ system works

Which kingdom lives on land and absorbs its food from other living or nonliving things?

• Fungi
• Plants
• Protists
• Animals

What is the second part of an organism's scientific name?

• Genus
• Species
• Common
• Kingdom

Which best describes liverworts?

• Conifer
• Vascular
• Vertebrate
• Nonvascular

Which is true about how pine trees reproduce?

• They make spores inside of pine cones
• They make seeds but do not have flowers
• They make spores like ferns and mosses
• They make flowers with seeds like fruit trees