Page 57 - BP3Y 001 Listening Success BT5
P. 57
A. Listen and answer the following questions. Note taking
1. What is the main idea of this passage? Topic :
a population of living things
the food chain
energy and nutrients Main idea :
the energy animals use
2. How many species do most food chains consist of?
st
1 Major point :
7
6
5
Details :
4
3. What happens to the amount of energy at every
trophic level?
It increases.
It declines. 2 Major point :
nd
It stays the same.
none of the above
Details :
4. How many food chains is a certain species involved
with at a time?
just one
none
several
too many 3 Major point :
rd
B. Check True or False.
1. The longest food chains are terrestrial Details :
animals.
2. Available energy increases at every trophic
level.
3. Food webs can be extremely complicated.
Unit 9. How Individuals Are Linked Together 57
