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Mustard gas removes guanine (G) from DNA. For developing embryos, exposure to mustard gas can cause serious deformities because guanine
a tissue
consumers without producers
scientific explanations are tentative and subject to change
is part of the genetic code
high adaptive value and occurs in its gametes
receptor sites on the surface of the cell
They have similar base sequences.
droughts, floods, and heat waves
Many viruses infect only a certain type of cell because they bind to certain
a tissue
consumers without producers
scientific explanations are tentative and subject to change
is part of the genetic code
high adaptive value and occurs in its gametes
receptor sites on the surface of the cell
They have similar base sequences.
droughts, floods, and heat waves
Abiotic factors that could affect the stability of an ecosystem could include
a tissue
consumers without producers
scientific explanations are tentative and subject to change
is part of the genetic code
high adaptive value and occurs in its gametes
receptor sites on the surface of the cell
They have similar base sequences.
droughts, floods, and heat waves
A stable ecosystem would not contain
a tissue
consumers without producers
scientific explanations are tentative and subject to change
is part of the genetic code
high adaptive value and occurs in its gametes
receptor sites on the surface of the cell
They have similar base sequences.
droughts, floods, and heat waves
The respiratory system includes a layer of cells in the air passages that clean the air before it gets to the lungs. This layer of cells is best classified as
a tissue
consumers without producers
scientific explanations are tentative and subject to change
is part of the genetic code
high adaptive value and occurs in its gametes
receptor sites on the surface of the cell
They have similar base sequences.
droughts, floods, and heat waves
Scientists in the United States, Europe, and Africa have now suggested that the hippopotamus is a relative of the whale. Earlier studies placed the hippo as a close relative of wild pigs, but recent studies have discovered stronger evidence for the c
a tissue
consumers without producers
scientific explanations are tentative and subject to change
is part of the genetic code
high adaptive value and occurs in its gametes
receptor sites on the surface of the cell
They have similar base sequences.
droughts, floods, and heat waves
Which observation could best be used to indicate an evolutionary relationship between two species?
a tissue
consumers without producers
scientific explanations are tentative and subject to change
is part of the genetic code
high adaptive value and occurs in its gametes
receptor sites on the surface of the cell
They have similar base sequences.
droughts, floods, and heat waves
A species in a changing environment would have the best chance of survival as a result of a mutation that has a
a tissue
consumers without producers
scientific explanations are tentative and subject to change
is part of the genetic code
high adaptive value and occurs in its gametes
receptor sites on the surface of the cell
They have similar base sequences.
droughts, floods, and heat waves
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