What is the "true body cavity" called?
a. Endoderm
b. Mesoderm
c. Coelom
d. Triploblastic
Ans: c. Coelom
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Which of the following statements is false?
A. Peptide hormones act on time scales of days to months. B. Amine hormones are more abundant than steroid hormones. C. Peptide hormones can evolve through changes in their amino acid sequence. D. Peptide hormones and amine hormones are both derived from amino acids. E. Steroid hormones are hydrophobic, whereas amine hormones are hydrophilic.
Breathing rates are automatically increased when _____ levels are _____
a. oxygen; high b. carbon dioxide; high
c. oxygen; low d. carbon dioxide; low e. ATP; low
Transgenic salmon are genetically engineered to grow faster than their wild type counterparts. They do not grow
larger; they simply reach their full size in shorter time. Transgenic salmon that are grown in outdoor pens are all sterile (non-reproducing) females. Why is this important? What will be an ideal response?
When the heterozygote is more fit than either homozygote, this is known as?
What will be an ideal response?