Which of the following is transmitted by mosquitoes?
A. African sleeping sickness
B. malaria
C. toxoplasmosis
D. tapeworms
E. typhus
Answer: B
Biology & Microbiology
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The ripening of fruit and the dropping of leaves and fruit are principally controlled by _____
A) auxins B) cytokinins C) indole acetic acid D) ethylene E) carbon dioxide concentration
Biology & Microbiology
Placoid scales are characteristic of class
a. Cephalaspidomorphi. b. Chondrichthyes. c. Osteichthyes. d. Reptilia.
Biology & Microbiology
The process of copying a gene's DNA sequence into a sequence of RNA is called
a. replication. b. PCR. c. translation. d. transcription.
Biology & Microbiology
At the end of gastrulation, the ectoderm makes up the
A) lining of the embryonic digestive tract. B) outer layer of the gastrula. C) inner layer of the gastrula.
Biology & Microbiology