Flatworm trematodes that cause ________ (or “snail fever”) rely on transmitting eggs from infected individuals in BOTH feces and urine
a. leishmaniasis
b. onchocerciasis
c. schistosomiasis
d. trichinellosis
Answer: C
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An egg rolling out of its nest is a(n) _______ to a nesting goose.
A. conditioned response B. reproductive habituation C. sign stimulus D. gene expression E. operant conditioning
________ is the second messenger associated with the regulation of blood pressure.
Fill in the blank(s) with the appropriate word(s).
Research into the genetics of invertebrates
a. is mostly complete, and is considered by most biologists to be a field of the past. b. holds the promise to address many important basic and applied research questions that could have profound positive effects on human health. c. should be largely abandoned in favor of research into the genetics of vertebrates, since findings in invertebrates have little chance of making a difference for humans. d. is at an early stage, as genetic research in the past has almost exclusively been centered on vertebrate animals and bacteria. e. has led biologists to largely abandon hope of understanding animal development due to the complexity of developmental processes.
Choose the mRNA sequence that is complementary to the gene sequence GGACTTACG.
A. CCTGAATGC B. AACUGGCUA C. GGTCAATCG D. CCUGAAUGC