In the life cycle of a fern, what is the name of the structure that produces the haploid spores?
a. sori
b. rhizome
c. gametophyte
d. gametangium
e. strobilus
ANSWER: a
You might also like to view...
Explain the pathology, diagnosis, and treatment of gastric ulcers caused by Helicobacter pylori
What will be an ideal response?
In a zygotic life cycle
A. Haploid cells form gametes that fuse to produce thick-walled diploid zygotes capable of surviving stressful conditions. B. There is an alternation of generations. C. The zygote undergoes meiosis and produces many heat-resistant spores that increase the population size and aid in dispersal. D. Haploid cells form spores that in turn fuse to produce thick-walled zygotes capable of surviving stressful conditions.
Identify the true statement about exotoxins.
A. They are structural proteins on the exterior surface of bacteria. B. They nonspecifically activate host complement and coagulation cascades. C. They bind to specific receptors on host cells. D. They promote bacterial adhesion
Which of the following represents a potential threat to biodiversity?
(a). People construct artificial reefs to support marine life. (b). Humans clear land for agriculture and housing. (c). Energy flows through an ecosystem, with much lost as heat. (d). Tropical rain forests and coral reefs are found where solar energy is the most abundant. (e). In a food chain, one population feeds on another.