Which of the following is a single-layered, fluidfilled
ball of cells?
a. cleavage
b. morula
c. gastrula
d. zygote
e. blastula
Answer: e
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The science dealing with classification is called ________.
A. nomenclature B. taxonomy C. identification D. systematics
What is an example of basic research?
a. Developing a new diagnostic test b. Synthesizing proteins for treating disease c. Manufacturing a vaccine d. Developing a new drug to treat diabetes e. Learning how plants turn carbon dioxide into sugar
Which of the following sequences is incorrect?
a. Males: inhibin: secreted by Sertoli cells b. Males: follicle-stimulating hormone: stimulate production of androgen binding protein c. Males: gonadotropin-releasing hormone: stimulate testosterone production d. Females: luteinizing hormone: stimulate ovulation e. Females: inhibin: decreased secretion of FSH
What is the molecule that is responsible for both the unity and the diversity of life?
What will be an ideal response?