Answer the following statements true (T) or false (F)
1.ADP is required for muscular contraction.
2.Calcium ions are required for muscular contraction.
3.The biceps and triceps work as an antagonist muscle pair.
4.Without its endoskeleton, the vertebrate body would be without support.
5.One of the critical functions of the vertebrate skeleton is helping to generate movement with the muscular system.
1.FALSE
2.TRUE
3.TRUE
4.TRUE
5.TRUE
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Mannitol salt agar (MSA) only allows the growth of halophiles (salt-loving microbes); nonhalophiles will not grow. Among the halophiles, mannitol fermenters will produce acid that turns the pH indicator yellow; mannitol nonfermenters leave the medium red. Onto MSA you inoculate a halophilic mannitol fermenter and a halophilic mannitol nonfermenter. In this case, the medium is acting as (a) ________ medium(s).
A. enrichment B. differential C. selective and differential D. selective
In the liver, carbon dioxide and ammonia are combined to form the less toxic waste product ____
a. urea b. water c. creatine d. sulfuric acid e. phosphoric acid
Secretes the hormones FSH and LH, which control ovulation
(A) testis (B) Lining of small intestine (C) Anterior pituitary (D) thyroid (E) pancreas
At what stage of animal development do cells first move from the surface of the embryo into the interior, resulting in a two- or three-layered embryo?
A. zygote formation B. blastulation C. neurulation D. gastrulation E. metamorphosis