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An organ system is a group of organs that
Weegy: An organ system is a group of organs that work together to perform a certain task. ] (More)
Question
Updated 2 days ago|11/26/2014 1:14:05 PM
0 Answers/Comments
Which of the following makes up a molecule of water? A. one atom of hydrogen and one atom of oxygen B. one atom of sodium and one atom of chlorine C. one atom of hydrogen and two atoms of oxygen D. two atoms of hydrogen and one atom of oxygen
Question
Updated 55 days ago|10/4/2014 12:36:17 PM
1 Answer/Comment
Two atoms of hydrogen and one atom of oxygen makes up a molecule of water.

Added 55 days ago|10/4/2014 12:36:17 PM
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A purebred chicken with white feathers is crossed with a purebred chicken that has black feathers. Each of their offspring has both black and white feathers. Why does this happen? A. The alleles for feather color are neither dominant nor recessive. B. Both alleles for feather color are recessive. C. Both alleles for feather color are dominant. D. Several alleles work together to determine the trait..
Question
Updated 6/10/2013 5:25:56 PM
1 Answer/Comment
A purebred chicken with white feathers is crossed with a purebred chicken that has black feathers. Each of their offspring has both black and white feathers. This happens because C. Both alleles for feather color are dominant.

Added 6/10/2013 5:25:56 PM
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An organism’s physical appearance is its __________ A. genotype. B. phenotype. C. codominance. D. heterozygous.
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Updated 6/10/2013 5:27:35 PM
1 Answer/Comment
An organism’s physical appearance is its B. PHENOTYPE.

Added 6/10/2013 5:27:38 PM
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What does the notation TT mean to geneticists? A. two dominant alleles B. heterozygous alleles C. at least one dominant allele D. one dominant and one recessive allele
Question
Updated 6/10/2013 5:41:11 PM
1 Answer/Comment
To geneticists, the notation TT means A. two dominant alleles.
Added 6/10/2013 5:41:11 PM
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