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BIOLOGY Y11
The Local Ecosystem
CLOZE PASSAGE No 2
Interactions between organisms
Complete the following sentences using appropriate words or short phrases
a) Energy is usually lost in an ecosystem in the form of ………..
Heat
b) The transfer of energy from 1 organism to another can be followed using a …………
Food chain
c) Name the source of energy for a food chain
Sun
d) All food chains begin with a g…………….. p…………………
Green plant
e) A producer is able to make “food” from sunlight. This process is called ………..
Photosynthesis
f) In a food chain the arrow means …………………..
Is eaten by
g) An animal that eats a green plant is called a ………………….
herbivore
h) These organisms can also be called …………….. order consumers
first
i)
Animals that eat other animals are called c…………………
Carnivores
j)
What is a measure of all the living material in an ecosystem
Biomass
k) A number of food chains can be combined to form a food ……………
l)
The biomass of p………………. is much higher than that of a……………………….
Web
Plants/Animals
m) Feeding interactions are called …………………. interactions
Trophic
n) A common feeing interaction where 1 organism eats another is called …………….
Predator /prey
o) Head lice, ticks and fleas are called …………….
Parasites
p) A type of relationship where 2 organism live together in close association
Symbiotic
q) A relationship where 1 organism benefits, but does not harm the other
Commensalism
r) A relationship where both organisms benefit and neither would survive if separated
Mutualism
s) Protozoans living in the gut of termites is an example of
Mutualism
t) A staghorn growing high in a tree is an example of
Commensalism
A lichen is an example of ………………. where an a…………… and a f…………. are
growing in a symbiotic relationship
The production of chemicals from plants that can harm or benefit other organisms is
v)
called……………………..
Mutualism, algae
and fungus
w) A common tree found in this area that displays this characteristic is the
Paper bark
x) A feature of an organism that makes it well suited to its environment
Adaptation
y) An adaptation may be s………………., p……………………… or b………………….
Structural,
physiological or
behavioural
z) Dragonfly larvae and mayfly nymphs are examples of ………………….. invertebrates
Macro
u)
Alleopathy