Hawkmoths are most likely to be attracted to flowers
that
a. have red and yellow patterned petals.
b. emit foul odors.
c. have UV light reflective petals.
d. have large, showy flowers.
e. emit strong odors.
Answer: e
You might also like to view...
First exposure to the allergen (hapten) causes an increase in the number of:
A. Th1 cells B. B cells C. antibodies D. cytotoxic T cells
In which of its forms do plants generally take up nitrogen for their use?
a. mainly as NH4+ b. mainly as N2 c. mainly as NH3 d. mainly as NO3?
Glycolysis is thought to be one of the most ancient of metabolic processes. Which statement supports this idea?
A) Glycolysis is the most widespread metabolic pathway. B) Glycolysis neither uses nor needs O2. C) Glycolysis is found in all eukaryotic cells. D) The enzymes of glycolysis are found in the cytosol rather than in a membrane-enclosed organelle. E) Ancient prokaryotic cells, the most primitive of cells, made extensive use of glycolysis long before oxygen was present in Earth's atmosphere.
Old pine stumps are dug up, split into pieces and sold as "fatwood." Fatwood is used as a fire starter. Why is this done?
A. The high concentration of volatile organic compounds makes the wood flammable. B. Pine bark does not absorb water and is flammable. C. The wood in the stumps is porous and dry, thus it burns easily.