A mutant that has a nutritional requirement for growth is an example of a(n)
A) autotroph.
B) auxotroph.
C) heterotroph.
D) organotroph.
Answer: B
Biology & Microbiology
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This is the Lophotrochozoan phylum with the most species, having about 100,000 described living
species.
a. Rotifera b. Mollusca c. Platyhelminthes d. Annelida e. Nemertea
Biology & Microbiology
The purpose of a photosystem is to convert ____
a. light energy into chemical energy b. carbon dioxide into sugar c. light energy into sugar d. oxygen into carbon dioxide e. light into oxygen
Biology & Microbiology
Which of the following proteins involved in muscle contraction is also an ATPase?
A. Myosin B. Tropomyosin C. Troponin D. Actin E. Titin
Biology & Microbiology
Together, follicle-stimulating hormone and luteinizing hormone are
A. metabolic hormones. B. growth hormones. C. adrenocorticotropic hormones. D. gonadotropic hormones.
Biology & Microbiology