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29 Cards in this Set
- Front
- Back
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Which is an example of a harmful mutation?
1) a cat's extra toe 2) a yellow flower 3) a hole in a baby's heart |
3) a hole in a baby's heart
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Predators are often selecting agents.
True False |
TRUE
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When more than several organisms in a population need or want the same "things" from the habitat, they ___ for it.
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COMPETE
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These are evidence of past life.
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FOSSILS
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This is the scientist that wrote the theory of natural selection.
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DARWIN
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According to Darwin, overtime the offspring of survivors will make up a larger proportion of a population.
True False |
True
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In the early stages of all vertebrates, two structures are always seen. What are they?
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TAIL GILLS OR GILL SLITS
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When body parts of different organisms are similar in structure and origin we say that they are...
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HOMOLOGOUS
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This is the basic molecule of life and is found in all living organisms.
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deoxyribonucleic acid
DNA |
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The structure or ability of an organism to remain hidden or unseen in its habitat is called....
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CAMOUFLAGE
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How do insecticide-resistant genes appear in insects?
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SELECTION
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The difference in appearance between members of the same species is called....
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VARIATION |
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A farmer's planting seeds from his best plants is an example of ....selection.
1) natural 2) artificial |
ARTIFICIAL
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The more ways that the DNA codes of different species are alike, the more closely they are related.
True False |
TRUE
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Which is a good example of a predator/prey relation?
1)bear/blackberry bush 2)rabbit/squirrel 3)coyote/mouse |
COYOTE/MOUSE
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The basic building blocks that make up protein are
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AMINO ACIDS |
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What do scientists use the fossil record for?
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1) to study the species that are extinct
2) to gather evidence about climate, food, and environment |
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The changing of the inherited traits of a population over time is called....
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EVOLUTION
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According to Darwin's theory of natural selection, organisms reproduce more offspring than can survive
True False |
True
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Scientists study ____ of different organisms to see how similar structures have developed
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EMBRYOS
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What do we call an area that provides shelter, food, and water to organisms
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HABITAT
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What does survival of the fittest mean?
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ORGANISMS THAT ARE BEST ADAPTED TO THE ENVIRONMENT SURVIVE
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When two different organisms develop structures and bahaviors in response to each other it is called....
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COEVOLUTION
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Which of the following is NOT a protein?
-enzymes -cholesterol -insulin |
CHOLESTEROL
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What do you call an organism that kills and eats its own food
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PREDATOR |
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The sequence of nitrogen bases are very similar in chimps, gorillas, and humans.
True or False |
True
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Anything that removes members of a population from the habitat is called a
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SELECTING AGENT
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A mutation of an organism can cause...
-only a bad effect -only a good effect -a change in a trait or behavior |
A CHANGE IN A TRAIT OR BEHAVIOR
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This molecule contains the instructions for making all living things
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DNA
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