Which of the following structures can be used for respiration in the Arthropods?
A. Tracheal tubes
B. Alveoli
C. Antennae
D. All the above
Ans: A. Tracheal tubes
Biology & Microbiology
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a. gene b. allele c. plasmid d. enzyme
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Studies suggest that to become malignant, neoplasms must establish
a. contact inhibition. b. a blood supply. c. a nutrient source. d. a second genetic mutation. e. uncontrolled mutations.
Biology & Microbiology
What is the economic importance of fungi? Name at least 10 products made utilizing fungi. What will be an ideal response?
Biology & Microbiology
Which of the following is a protective structure where egg cells are formed in bryophytes and some other plants?
a. stoma b. strobilus c. sporangium d. archegonium
Biology & Microbiology