Sorting living things into kingdoms

Grade 7 Science Worksheet

Circle the best answer.

1. Read this first

   Comparison chart

   kingdom	cells	cell wall	food
   plants	many cells	yes (cellulose)	make their own by photosynthesis
   animals	many cells	no	take in food
   fungi	mostly many cells (yeasts one)	yes (chitin)	break food down outside the body and absorb it
   protists	mostly one cell	some	some make food and some take it in
   bacteria	one cell with no nucleus	most	some make food and most absorb it

2. 1.

   Using the chart, what do bacteria and protists have in common, Bo?

   • Most are a single cell
   • Neither has a nucleus
   • Both have chitin walls
   • Both have a nucleus
3. 2.

   Using the chart, which trait do fungi and animals share, Esme?

   • Both have cell walls
   • Both make food from sunlight
   • Neither makes its own food
   • Both are a single cell
4. 3.

   A pond organism is one cell with a nucleus. It has green chloroplasts and swims. Which kingdom fits, Jun?

   • Protists
   • Plants, as it is green
   • Animals, as it swims
   • Bacteria
5. 4.

   A fuzzy growth on a fallen leaf has many cells and chitin walls, and it absorbs food from the leaf. Which kingdom fits, Kira?

   • Protists
   • Plants, as it grows on a leaf
   • Animals
   • Fungi
6. 5.

   A sample has tiny single cells with no nucleus that swim with tails. Which kingdom fits, Luz?

   • Animals, as they swim
   • Bacteria
   • Fungi
   • Protists, as they are one cell
7. 6.

   Milo sorts a list: moss, yeast, sunflower, mold, fern. Which ones are fungi?

   • Yeast and mold
   • Sunflower and fern
   • Moss and mold
   • Yeast, mold and moss
8. 7.

   Noah sorts a list: frog, sponge, mushroom, earthworm, oak. Which ones are animals?

   • Frog and earthworm, as sponges can't move
   • Oak and sponge
   • Frog, sponge and earthworm
   • Frog, earthworm and mushroom
9. 8.

   Pia sorts one-celled organisms: an amoeba (has a nucleus), a soil bacterium (no nucleus) and a yeast (has a nucleus, chitin wall). Which is a protist?

   • The soil bacterium
   • The yeast
   • The amoeba
   • Each of them
10. 9.

    Tala compares a bacterium and a virus. Which statement is right?

    • The virus is a cell; the bacterium is not
    • Both are cells
    • Neither has genetic material
    • The bacterium is a cell; the virus is not
11. 10.

    Which property of life does a virus lack on its own, Zee?

    • It has no size
    • It can't copy itself outside a host cell
    • It has no shape
    • It can't split in two like other cells