Download Life Science Study Guide - Team 6

Name: ___ANSWER KEY_____________________________ Period: ___________
Life Science Study Guide
Biomes/Ecosystems
1. A ___population______________ is all organisms OF ONE SPECIES living in a specific area at one time.
2. A ____community______________ is many DIFFERENT SPECIES living in a specific area at one time.
3. A(n) __ecosystem_______________________ contains the living AND non-living things in a specific
area.
4. __Carrying_______ _____capacity_________ is the maximum number of organisms an ecosystem can
support.
5. If the population of a species increases in an area, this means that the ____birth__ rate is HIGHER than
the ___death______ rate.
6. ___Commensalism___________ is the relationship in which one species is HELPED but the other is
NOT AFFECTED.
7. __Parasitism_____________ is the relationship in which one species is HELPED but the other species is
HARMED.
8. __Mutualism_________ is the relationship in which both species benefit.
9. A ____predator___________ hunts another animal; ____prey_____ is the animal that is being hunted.
10. A(n) _____carnivore__________ eats only animals. A(n) _____herbivore_________ eats only plants.
A(n) ____omnivore____________ eats both plants and animals.
11. A _____producer________________ makes its own food. An example is a(n) ___plant______.
12. A _____consumer____________ must eat food to get energy. An example is a(n) ____animal_____.
13. A ___decomposer_______________ breaks down dead plants and animals, and puts nutrients back
into the soil.
14. What are 2 other names for a grassland? __Savanna_______________ and ____Prairie___________
15. What biome is located near the poles? ___Tundra__________________________
16. What biome contains the most diversity in terms of plants and animals? __Tropical Rainforest_____
17. Which water biome contains a mix of salt water and fresh water? _Estuary_____________________
18. Give an example of an animal adapting to its environment. ___________________________________
____________________________________________________________________________________
19. ___Homeostasis__________ is a balance of items in an ecosystem, such as a rain forest supporting the
basic needs of the plants and animals that live there with food, water, shelter, and air.
20. A(n) ____invasive_________ ______species______________ is a non-native organism that causes
harm to the environment or disrupts an ecosystem.
21. Circle the correct answer in the parentheses.
According to the graph on the right, the population
(increases, decreases, stays the same) when the carrying
capacity is reached.
22. What starts a food chain or food web? ___Sun___________________
23. What ORGANISM starts a food chain or food web? __Producer/Plant___________
Use the food chain below to answer questions 24-30.
Hawk
Ladybug
Finch
Fungi
Worm
Bacteria
24. Name an herbivore. _Greenfly, Butterfly, Grasshopper, Mouse, Rabbit________
25. Name a carnivore. __Ladybug, Dragonfly, Frog, Snake, Hawk, Fox_______________________
26. Name an omnivore. ___Finch______________________
27. Name a producer. __Berries/Plantain_______
28. Name a decomposer. __Fungi/Worm/Bacteria_______
29. Name a predator/prey relationship from the food web. __Hawk/Snake, Fox/Rabbit, etc.__________
30. Create a food chain using 4 of the items listed above. EXAMPLE. There are other correct answers.
____Sun_______  ____Berries___________  ____Butterfly_________  ___Frog________
31. If the frog population declined due to disease, what would happen to the other organisms in the food
web? ___SAMPLE ANSWER: Snakes population would decline because it doesn’t have as much to eat.
Dragonfly population would become larger because nothing is eating it, so the ladybugs may start to
decline. ____________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
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Plant Processes
32. All living things are made up of __cells___________, which are the basic unit of an organism.
33. Cells are mostly made up of ____water________.
34. __Photosynthesis_____________ is the process that plants use to make sugar.
35. Another name for the sugar that plants produce for food is ______glucose__________________.
36. Photosynthesis requires three reactants, which are _____water______________,
___sunlight_________________, and ______carbon dioxide______________.
37. The two things that are produced by photosynthesis are _______glucose/sugar________________ and
___oxygen________________________.
38. Photosynthesis occurs in the _____leaf_______________________ of a plant, specifically in the
_____chloroplasts______________________ (cell organelle).
39. _____Chlorophyll_________________ is the green pigment that absorbs energy from the Sun.
40. During _____cellular_____________ _______respiration____________ energy is released from food
in the form of ATP, or stored for later use.
41. Plants have ____cell________________ _________walls___________ that provide structure and
support to the plant; animals cells do not have this.