This document contains a biology worksheet with questions about cell structure, types of cells, kingdoms of living things, microbiology, and ecology. It includes multiple choice questions, true/false questions to correct, matching questions, and fill-in-the-blank questions covering topics like cell organelles, unicellular vs. multicellular organisms, fungi vs. bacteria vs. protozoa, and defining populations, communities, and ecosystems. The worksheet provides answers to check understanding.

1. Centro:
Nombre: Fecha: Curso:
1. Write someexample of each type of interspecific relationship.
 Predation: …………………………………………………………………….
 Parasitism: …………………………………………………………………….
 Mutualism: …………………………………………………………………….
 Symbiosis: …………………………………………………………………….
2. Write someexample of each type of interspecific relationship.
 Predation: open answer (for example: a bear eating a fish)
 Parasitism: open answer (for example: a fly in a cow)
 Mutualism: open answer (for example: a bee with a flower)
 Symbiosis: open answer (for example: lichens with alga and
fungus)
3. Classify the followingrelationships into intraspecific and
interspecific.
predation, reproduction, feeding, parasitism, protection, mutualism,
symbiosis
INTRASPECIFICRELATIONSHIP INTERSPECIFIC RELATIONSHIP

2. 4. Classify the followingrelationships into intraspecific and
interspecific.
predation, reproduction, feeding, parasitism, protection, mutualism,
symbiosis
INTRASPECIFICRELATIONSHIP INTERSPECIFIC RELATIONSHIP
reproduction
feeding
protection
predation
parasitism
mutualism
symbiosis
5. Wedon’t need a microscopeto see … fungi.
a) capped fungi
b) bacteria
c) protozoa
6. Wedon’t need a microscopeto see … fungi.
a) capped fungi

3. b) bacteria
c) protozoa
7. Write trueor false. Then, correct them.
 A group of clownfishmake up a population.
 Jellyfish is an exampleof individual.
 A group of clownfishand jellyfishis a population.
8. Write trueor false. Then, correct them.
 A group of clownfishmake up a population. True
 Jellyfish is an exampleof individual. True
 A group of clownfishand jellyfishis a population. False-
community
9. Match the columns.
Organelles · · A viscousliquid. The organelles
float in it.
Cytoplasm · · External layer of the animal cell.
Cell membrane· · Small structuresinsidethe
cytoplasm.
10. Match the columns.
Organelles · · A viscousliquid. The organelles

4. float in it.
Cytoplasm · · External layer of the animal cell.
Cell membrane· · Small structuresinsidethe
cytoplasm.
11. Write trueor false. Then, correct them.
 Fungican be unicellular and multicellular.
 Bacteria’s cells have no defined nucleus.
 Fungifeed on other livingthings.
 Animalscan be multicellular and unicellular.
 Plants maketheir own food.
12. Write trueor false. Then, correct them.
 Fungican be unicellular and multicellular. True
 Bacteria’s cells have no defined nucleus. True
 Fungifeed on other livingthings. False - Protozoa
 Animalscan be multicellular and unicellular. False – only
multicellular
 Plants maketheir own food. True
13. A group of many livingthings of the same species livingtogether in
the same environmentmakeup a… .

5. a) individual
b) population
c) community
14. A group of many livingthings of the same species livingtogether in
the same environmentmakeup a….
a) individual
b) population
c) community
15. Completethese definitions.
 ……………………. relationships: relationships between living
organismsof the same species.
 ……………………. relationships: relationships between living things
from differentspecies.
16. Completethese definitions.
 Intraspecific relationships: relationships between living
organismsof the same species.
 Interspecific relationships: relationships between living things
from differentspecies.
17. Write trueor false. Then, correct them.

6.  Fungifeed on the remainsof other living things.
 Algae feed on other livingthings.
 Animalsfeed on other living things.
 Plants maketheir food through photosynthesis.
 Bacteria make their own food.
18. Write trueor false. Then, correct them.
 Fungifeed on the remainsof other living things. True
 Algae feed on other livingthings. False – maketheir own food
 Animalsfeed on other living things. True
 Plants maketheir food through photosynthesis. True
 Bacteria make their own food. False - Algae
19. Match the columns.
Interaction · · This role is to transform food into
simplesubstances and get energy
from them.
Reproduction · · The ability to sense changes in
the environmentand insidethe
body, and respond to them.
Nutrition · ·This enables living things to
produceoffspringthat are similar

7. to them.
20. Match the columns.
Interaction · · This role is to transform food into
simplesubstances and get energy
from them.
Reproduction · · The ability to sense changes in
the environmentand insidethe
body, and respond to them.
Nutrition · ·This enables living things to
produceoffspringthat are similar
to them.
21. Completethese definitions.
 …………………… : This role is to transform food into simple
substances and get energy from them.
 …………………… : The ability to sense changes in the environment
and insidethe body, and respond to them.
 …………………… : This enables living things produceoffspringthat
are similar to them.
22. Completethese definitions.
 Nutrition: This role is to transform food into simplesubstances
and get energy from them.

8.  Interaction: The ability to sense changes in the environmentand
insidethe body, and respond to them.
 Reproduction: Thisenables living things produceoffspringthat
are similar to them.
23. Completethe text with the followingwords:
animal, chloroplast, nucleus, organelles, wall, cell, cytoplasm
A …………………. is the smallest unitof life. It is a livingthing because it
performsthe three vital functions.
There are two types of cells: ………………… cells and plantscells. Their
parts are.
 ………………… is insidethe cell. It is a viscous liquid. The
organelles float in it.
 The ………………… contains the material the cell needs for
reproduction. Italso controls the activities of the cell.
 The cell ………………… is the external layer of the plantcell. It is a
rigid structurethat surroundsthecell membraneand protects
the cell.
 The cell membrane is the external layer of the animal cell and
takes part in the interaction function.
 ………………… are small structures insidethe cytoplasm. They
perform variouscell functions, suchas making chemicals and
obtaining energy.
 ………………… are green organelles that capture light and produce
nutrients.
24. Completethe text with the followingwords:
animal, chloroplast, nucleus, organelles, wall, cell, cytoplasm

9. A cell is the smallest unitof life. It is a living thing because it performs
the three vital functions.
There are two types of cells: animal cells and plants cells. Their parts
are.
 Cytoplasm is insidethe cell. It is a viscous liquid. The organelles
float in it.
 The nucleus containsthe material the cell needsfor
reproduction. Italso controls the activities of the cell.
 The cell wall is the external layer of the plant cell. It is a rigid
structurethat surroundsthecell membraneand protects the cell.
 The cell membrane is the external layer of the animal cell and
takes part in the interaction function.
 Organelles are small structuresinside the cytoplasm. They
perform variouscell functions, such as making chemicals and
obtaining energy.
 Chloroplasts are green organelles that capture light and produce
nutrients.
25. Write trueor false. Then, correct them.
 Cytoplasm containsthe material the cell needsfor reproduction.
 Cell wall is the external layer of the plantcell.
 Chloroplastsare green organelles that capture light and produce
nutrients.
26. Write trueor false. Then, correct them.

10.  Cytoplasm containsthe material the cell needsfor reproduction.
False - Nucleus
 Cell wall is the external layer of the plantcell. True
 Chloroplastsare green organelles that capture light and produce
nutrients. True
27. Classify the followingliving things into unicellular or multicellular
or both.
the plantkingdom, the animalkingdom, the alga kingdom, the Protista
kingdom, the bacteria kingdom, the funguskingdom
UNICELLULAR MULTICELLULAR UNICELLULAR AND
MULTICELLULAR
28. Classify the followingliving things into unicellular or multicellular
or both.
the plantkingdom, the animalkingdom, the alga kingdom, the protista
kingdom, the bacteria kingdom, the funguskingdom
UNICELLULAR MULTICELLULAR UNICELLULAR AND
MULTICELLULAR

11. the protista kingdom
the bacteria kingdom
the plant kingdom
the animal kingdom
the fungus kingdom
the alga kingdom
29. Completethe sentences with the wordsbelow:
Capped, Fungi, Protozoa, own, reproduce, bacteria
 ……………………. don’t need sunlight for nutrition.
 Fungican’t maketheir ……………………. food.
 ……………………. fungiproducesporesto reproduce.
 ……………………. are unicellular living things such as amoebas and
paramecia.
 Bacteria ……………………. very rapidly.
 Some ……………………. are beneficial.
30. Completethe sentences with the wordsbelow:
Capped, Fungi, Protozoa, own, reproduce, bacteria
 Fungidon’t need sunlight for nutrition.
 Fungican’t maketheir own food.
 Capped fungiproducesporesto reproduce.
 Protozoa are unicellular living things such as amoebas and
paramecia.
 Bacteria reproduce very rapidly.

12.  Some bacteria are beneficial.
31. Match the columns.
Bacteria · · Moulds
Protozoa· · Bacilus
Fungi· · Paramecia
32. Match the columns.
Bacteria · · Moulds
Protozoa· · Bacilus
Fungi· · Paramecia
33. Match the columns.
Coral· · Community
A group of algae · · Individual
Animalsliving on a reef · Population
34. Match the columns.
Coral· · Community
A group of algae · · Individual
Animalsliving on a reef · Population