Download Interactions Among Living Things Notes

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Interactions Among Living Things Notes
From Prentice Hall, pages 722 – 729
Adapting to the Environment, page 723
MI: Each organism has unique characteristics that affect its ability to
____________________ in its environment.
Natural Selection, page 723
MI: ____________________ ____________________ is the process by which a
characteristic that makes an organism better suited to its environment may eventually
become more common in that species.
CI: This works because organisms that are best suited tend to live longer and produce
____________________.
CI: Adaptations are the ____________________ and ____________________
____________________ that allow organism to live successfully in their environment.
CI: Organisms that are ____________________ suited to the environment are less
likely to survive and reproduce so that over time these characteristics may disappear.
Niche, page 723
MI: Every living thing has many ___________________ that are suited to its habitat.
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CI: An organism’s ____________________ is its role in the habitat or how it makes its
living.
CI: A niche includes the type of _______________________ it eats, how it
____________________ this food, and which other organisms use the organism as
food as well has when and how it ____________________ and the physical
____________________ it requires to survive.
Competition, page 724
MI: The three major types of interactions among organisms are:
____________________, ____________________, and ____________________.
MI: ____________________ is the struggle between organisms to survive as they
attempt to use the same limited resource.
CI: There is a limited amount of ____________________, ____________________,
and ____________________ in any habitat.
CI: Organisms that survive have ____________________ that allow them to reduce
competition by specializing.
Predation, page 725
MI: ____________________ is an interaction in which one organism kills another for
food.
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CI: The ____________________ is the organism that does the killing while the
____________________ is the organism that is killed.
CI: Predation has a major effect on the size of a ____________________.
CI: Typically, predator and prey populations rise and fall in ____________________.
Predator Adaptations, page 726
MI: Predators have ____________________ that make them successful hunters.
CI: Examples of predator adaptations include how a cheetah can
____________________ very fast or how a jellyfish has ____________________ with
poisonous substances to paralyze prey.
CI: Plants like sundews have sticky _____________________ to catch flies that land
on it so that the plant can digest it.
CI: Other predators have features for hunting at ____________________ like an owl’s
big ____________________ or a bat’s ability to produce pulses of
____________________ to find moths.
Prey Adaptations, page 726
MI: Prey also have features to avoid being killed by ____________________ like the
antelope’s ____________________ or the skunk’s ____________________.
Defense Strategies, page 727
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CI: ____________________ is nature’s copying trick like a caterpillar that looks like a
snake.
CI: ____________________ ____________________ is like when the pangolin rolls
up into a scaly ball.
CI: ____________________ ____________________ on a moth scare away potential
predators.
CI: ____________________ ____________________, like blue and yellow, tell
predators not to eat because it is poisonous.
CI: ____________________ is blending in like a walking leaf insect.
Symbiosis, page 728
MI: Symbiosis is the ____________________ relationship between __________
species that benefits at least one of the species.
CI: The three types of symbiosis are: ____________________,
____________________, and ____________________.
Mutualism, page 728
MI: ____________________ is a type of symbiosis when both species benefit.
CI: The long eared bats get food from the ____________________, which are also
helped because they are pollinated.
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CI: Stinging ants eat the leaves of the ____________________
____________________ while the ants attack other species that approach the tree.
Commensalism, page 728
MI: ____________________ is a type of symbiosis when at least one organism
benefits while the other species is neither helped nor harmed.
CI: The ____________________ benefit from building their nest on the saguaro
cactus, while the cactus is not affected.
Parasitism, page 729
MI: ____________________ is a type of symbiosis that involves one organism living
on or inside another organism and harming it.
CI: The ____________________ is the organism that lives in or on and benefits, while
the ____________________ is the organism that is lived in or on and harmed.
CI: Some examples of parasites are ____________________,
____________________, ____________________ that live on a host’s body and
____________________ that live inside a host’s body.
CI: Parasites don’t usually kill their ____________________ because it loses its source
of food.
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Name:
Period:
Date:
Interactions Among Living Things Questions
1. Explain how natural selection works.
2. Why can’t two species occupy the same niche?
3. What are three main ways in which organisms interact? Give one example of
each type of interaction.
4. Describe five defense strategies (page 727).
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5. List the three types of symbiotic relationships. For each type of symbiotic
relationship, explain how the two organisms are affected.
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