In this diagram of the life cycle of a flowering plant, in which structure, A, B, C, or D, would a pollen tube grow?
1.A
2.B
3.C
4.D
4
You might also like to view...
Consider the following electronegativity values: Boron (B) = 1.8 Carbon (C) = 2.5 Chlorine (Cl) = 3.2 Selenium (Se) = 2.6 Which of the following bonds is the most polar?
A. Se-Cl B. C-Cl C. B-Cl D. cannot determine from the information provided
What do cephalopods and crustaceans have in common?
a. they both have sharp, tearing beaks. b. both have compound eyes. c. both are nektonic predators. d. in males, both transfer spermatophores into the female.
A primary immune response is the ________
A) production of primary-type antibodies in the first day of exposure to a microorganism B) immune response elicited by the second exposure of lymphocytes to a particular antigen C) immune response elicited by the first exposure of lymphocytes to a particular antigen D) immune response elicited by the first exposure of memory cells to a particular antigen
Brachiopods possess __________ germ layers.
a. no b. one c. three d. two e. four