The hemoglobin molecule ____
a. transports oxygen from the lungs to the cells of the body
b. prevents sickle cell anemia when present in high enough concentrations in the blood
c. is involved in amino acid metabolism
d. acts as a cell surface receptor
e. is controlled by a single gene
a
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____ factors determine which type of algae species will predominate in tide pools in New England
a. Bottom-up b. Top-up c. Abiotic d. Biological e. Physical
To obtain large, flat cookies, one should use more fat in a recipe
Indicate whether the statement is true or false
Identify the part of the atom that most determines the chemical properties of the atom
A) The number of shells B) The number of protons C) The number of neutrons D) The number of electrons
When ectoparasites first arrive and adapt to the fur or feathery habitat of a host, they often lose more complex ancestral features. So it is possible to gain a trait in evolution and subsequently lose it. However, it is considered vastly improbable that this same trait will again re-evolve. Therefore, in trying to trace evolutionary lineages, can we always expect the most primitive forms to be the simplest and the most advanced to be the most complex? Why or why not?
What will be an ideal response?