Decent With Modification Flashcards
(13 cards)
What are the different levels in biology?
- Biosphere
- Ecosystem
- Communities
- Populations
- Organisms
- Organs & organ systems
- Tissues
- Cells
- Organelles
- Molecules
Describe seven emergent properties associated with life.
- Order-complex organization
- Regulation – homeostasis
- Growth and development
- Energy utilization
- Respond to the environment
- Reproduction
- Evolution
Which of the following properties are not associated with all living organisms?
A) evolutionary adaptations
B) energy processing
C) responding to the environment
D) growth and reproduction
E) oxygen consumption
Oxygen consumption
Describe Lamarck’s model for how adaptations evolve.
The physical changes that occur during a lifetime, could be transmitted to offspring.
Explain what Darwin meant by “descent with modification”.
Descent with modification was Darwin’s definition of evolution.
Distinguish between homologous and analogous structures.
Homologous structures: similarity resulting from common ancestry. Anatomical and molecular.
Analogous structures: similar but not resulting from a common ancestor.
_________ authored the theory of evolution in his book, “On the Origin of Species”.
A: Charles Darwin
B: Jean-Baptiste de Lamarck
C: Thomas Huxley
D: Albert Einstein
Charles Darwin
Natural selection is when … .
A: an organism gets used to the environment
B: the organism reproduces and passes on their traits
C: those with the least adapted traits will survive and reproduce more often D: those with the best adapted traits will survive and reproduce more often
D: those with the best adapted traits will survive and reproduce more often
Homologous structures (human arm, dog’s leg, bird’s wing, and whale’s fin) all point to a common ancestor.
A: True
B: False
A. True
What causes natural selection to occur?
A: When there are more organisms born than can survive in an environment
B: When there is a limit in the amount of resources in an environment
C: When there is genetic variation, or different genes in the same environment
D: All of these are correct
D: All of these are correct
What happens to the traits that are not well adapted to the environment over time?
A: There will be no change in the number of the traits
B: The traits will continue to be reproduced in the population
C: The traits will eventually disappear from the population
D: All of these are correct
C: The traits will eventually disappear from the population
Changes in a species over a long period of time is called …
A: Life Cycle
B: Developmental Stages
C: Natural Selection
D: Evolution
D: Evolution
The finches on the Galapagos island were similar in form except for variations of their beaks. Darwin observed that these variations were useful for:
A: attracting a mate
B: defending territory
C: building nests
D: gathering food
D: gathering food
