1 Use the words in the box to complete the text about living things. unicellular organisms characteristics bacteria many interaction cells multicellular organisms
cells Living things are made up of units called (a) _______________. This is the smallest living unit. Some living things, such as (b) _______________________, are made up of only one cell. These are (c) _______________________. Others are made up of (d) _______________________ cells and are called (e) _______________________. Living things share certain (f) _______________________ such as nutrition, (g) _____________________ and reproduction.
2 Order the structures from the simplest to the most complex. organism cell organ tissue body system 1
2
3
4
5
3 Living things can be classified into five groups called kingdoms. Tick (✓) the boxes to complete the chart about unicellular and multicellular organisms.
5 Read the descriptions and identify the kingdoms. a. These living things can be flowering or non-flowering. b. These living things feed on other living things that are decomposing. Yeast belongs to this kingdom. c. We can only see these unicellular organisms using a microscope.
6 Complete the sentences about the life processes of animals. plants and animals shelter born live eggs live alone groups senses
born live
a. Some animals are
while other animals are born from
. b. Animals use their
to interact with their environment.
c. Some animals live in
for protection while other animals prefer to .
d. Some animals only eat other animals, some only eat plants and there are others that eat both .
7 Circle True or False. Copy the sentences that are true and correct the ones that are false. a. Animals do not stop growing. Animals only grow until they become mature.
True / False
b. Only plants can make their own food.
True / False
c. Fungi take in nutrients from dead plants and animals.
True / False
d. Plants release carbon dioxide during photosynthesis.
True / False
e. Bacteria can live inside other living things.
True / False
f. All plants are multicellular organisms.
True / False
g. All protists are unicellular organisms.
True / False
8 Living things perform the same life processes: nutrition, interaction, reproduction, respiration, excretion, growth and movement. Explain how a plant carries out these processes. a. Plants make their own food using photosynthesis. b. c. d. e. f. g.
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