All of the following correctly describe the fate of the embryonic layers of a vertebrate EXCEPT
(A) neural tube and epidermis develop from ectoderm
(B) linings of digestive organs and lungs develop from endoderm
(C) notochord and kidneys develop from endoderm
(D) skeletal muscles and heart develop from mesoderm
(E) reproductive organs and blood vessels develop from mesoderm
Ans: (C) notochord and kidneys develop from endoderm
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Air becomes deoxygenated during the ____ of a bird’s respiratory cycle
a. first inhalation b. first exhalation c. second inhalation d. second exhalation e. third exhalation
Which of the following is competition between members of the same species for resources?
a. interspecific competition b. dynamic competition c. intraspecific competition d. shared governance
If two chromosomes have the same genes for the same trait, they are said to be ________
A) autosomal B) polypeptides C) homologues D) traits
During interphase, the genetic material of a typical eukaryotic cell is __________.
Fill in the blank(s) with the appropriate word(s).