The serotinous cones of the longleaf pine, Pinus palustris, depend on _____ to release their seeds.
A. daylight
B. extended freezes
C. sustained rainfall
D. fire
E. animals
D. fire
You might also like to view...
The Department of Energy is very interested in investigating which organisms compose the gut microbiome of cows, especially in the rumen. Why would the microbes within a cow's rumen be studied by scientists in the Department of Energy?
(Select all correct choices.) A. Scientists want to derive biofuels from cellulose. B. Scientists want to derive biofuels from methane. C. Scientists want to derive biofuels from the lactose in cow's milk.
Lactose is a corepressor in the lac operon.
Answer the following statement true (T) or false (F)
Floating leaves of aquatic plants have:a
stomata only on the lower epidermis. b. stomata only on the upper epidermis. c. stomata on both the lower and upper epidermis. d. no stomata on the epidermis. e. stomata only within the mesophyll.
Pus, a thick white substance that sometimes accumulates at the site of an infection, is a mixture of dead bacteria, debris, and white blood cells
Indicate whether the statement is true or false