Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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True or false A food web shows the number of organisms are in Energy flow


Transcribed Image Text:14. Living organisms that break down organic matter are
micro - organisms
15. The role an organism has in its environment is called its
iche
B. True or False: In the space provided, state if the statement is true (T)
or false (F).
1. A food web shows the number of organisms that are involved in energy
transfer.
2. A pyramid of numbers includes the same organisms that are in a food
chain.
3. In a pyramid of numbers, there are always more animals being eaten than
there are animals eating.
4. As you move up a pyramid of numbers, the levels get bigger because the
organisms are bigger.
5. A pyramid of biomass looks the same as a pyramid of numbers.
6. Humans are usually at the bottom of a pyramid of numbers, to show that
they can eat organisms from different levels.
7. Biomass is the total mass of all of the organisms in an ecosystem.
8. Energy is lost when there is an energy transfer.
9. Shorter food chains are less efficient and lose more energy than longer
food chains.
10. If the organisms at the base of a pyramid of numbers were to die
because of a natural event, such as a fire, this would have very little
effect on the rest of the pyramid.
11. Succession is a rapid change in which old species are removed and new
species grow.
12. Lichens and mosses grow on bare rock, preparing the area for new types
of plants and animals.
13. Birds and mammals are usually present only in the later stages of
succession.
14. Succession can start when seeds are brought into an area by wind,
water, or a bird accidentally dropping food.
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