| A | B |
|---|
| Which of the characteristics of life best explains why bears hibernate when it starts to get cold? | Living things respond to their environment. |
| Cell specialization in multicellular organisms allows cells to ____. | perform different functions |
| The process by which organisms regulate their internal conditions to keep them fairly constant is called ___. | homeostasis |
| A group of organisms of the same type living in the same area is called a ___. | population |
| A group of many different types of organisms living together in the same area is called a(n) ___. | community |
| Most multicellular organisms reproduce ____. | sexually |
| Most unicellular organisms reproduce ___. | asexually |
| A biologist who studies plants is called a ___. | botanist |
| A biologist who studies animals is called a ___. | zoologist |
| A biologist who studies ancient life is called a ___. | paleontologist |
| The largest level at which organisms can be studied is at the level of the ___. | biosphere |
| The combination of chemical reactions through which an organism builds up or breaks down material is called ____. | metabolism, 
|
| The smallest thing that can be considered to be living is a ___. | cell |
| An organism that is made of only one cell is called a _____ organism. | unicellular |
| The directions for how an organism grows and develops is coded into a molecule called ____. | DNA |
| Changing form as an organism grows is called ___. | development |
| Something that an organism responds to is called a ____. | stimulus |
| When one type of organism changes over very long periods of time (many many generations), it is called ____. | Evolution |
| Groups of atoms bonded together are called ____. | molecules |
| Groups of cells can be organized into ____, _____, and ____. | tissues, organs and organ systems |
| All the living and non-living things in an area are called _____. | an ecosystem |
| What are the two types of cells that all living things are made of? | Prokaryotic and eukaryotic |
| What is the main difference between prokaryotic and eukaryotic cells? | Eukaryotic cells store their DNA inside an organelle called the nucleus (Other differences include the fact that prokaryotic cells are much smaller than eukaryotic cells and lack any type of membrane bound organelle, although the do have an organelle called a ribosome, but it is not surrounded by a membrane) |
| Which type of organisms are made of prokaryotic cells? | Bacteria (Prokaryotes can be found in two different kingdoms; the archaebacteria in the domain Archaea and the Eubacteria in the Bacteria domain) |
| Which type of organisms are made of eukaryotic cells? | Everything other than bacteria (These include the plant, animal, fungi, and protist kingdoms) |
| What are the tiny structures with specific functions called that are located in the cytosol of cells (mostly eukaryotic cells)? | organelles (Eukaryotic cells are the only type of cell that has membrane-bound organelles, like the nucleus, golgi, vacuoles, etc. These sac-like membranes form separate areas inside the cell where specialized functions can be carried out and specific substances can be stored. Both prokaryotic and eukaryotic cells have ribosomes, which are often referred to as organelles also, but they are solid structures, not hollow sac-like structures like the membrane-bound organelles found in eukaryotic cells) |
| What surrounds both prokaryotic and eukaryotic cells and regulates what goes in and out of the cell? | A plasma membrane (Can also be called a cell membrane. Don't get this confused with the cell wall, which all prokaryotes have and many eukaryotes as well. Animals and some protists don't have a cell wall) |
| What are four things that both prokaryotic and eukaryotic cells have in common? | Plasma membrane, DNA, cytosol, and ribosomes |
| The small solid (not membrane-bound) organelle found in both prokaryotic and eukaryotic cells that helps the cell build different types of proteins is called a(n) _____. | ribosome |
