A comparison was made across eight species for their differences in amino acid sequences for the alpha chain of the hemoglobin molecule. Which inferences can be made about evolutionary relationships based on the data presented in the table? Select all that
may apply.
0)
Humans would share more homologous structures with a horse than with a
frog.
Humans share a more recent common ancestor with the gorilla as
compared to the pig.
Humans will have the same number of homologous structures with the pig
and the chicken.
Humans will have more vestigial structures than the chicken because they
diverged much later.
The chicken and the lizard have the closest evolutionary relationship to
each other than all of the other species represented in the table.
A)
B)
D
E)

Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.

In the practice of science, this type of reasoning is used to develop explanations.

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound