How do animals get enough calories and minerals in their diets?
What will be an ideal response?
When an animal is deficient in sodium, it develops an immediate and compelling preference for the taste of sodium salt; in contrast, an animal deficient in some vitamin or mineral other than sodium, must learn to consume foods that are rich in the missing nutrient by experiencing their positive effects!
>this is because vitamins and minerals other than sodium normally have no detectable taste in them
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Over long segments of chromosomes, the linear order of mouse and human genes is preserved. This is called conserved ______________.
Fill in the blank(s) with the appropriate word(s).
For evolution to become the theory that underpins all of the biological sciences, which of the following
had to occur?
a. Darwin had to write The Origin. b. Lamarck's theory of biological evolution had to be disproved. c. Darwin had to prove that finches in the Galápagos were descended from a common ancestor. d. Mendel had to discover genes. e. Research in many fields had to provide evidence for evolution.
In a population that is in Hardy-Weinberg equilibrium, the frequency of the homozygous dominant genotype is 0.49 . The percentage of the population that is heterozygous is
a. 51. b. 49. c. 42. d. 7. e. 3.
Late blight of potatoes that caused the Irish potato famine is caused by members of the genus
__________. a. Myxomycota b. Phytophthora c. Giardia d. Macrocystis e. Physarum