Which of the following is the main reason why pollen withstands decay much better than typical plant
parts?
a. hemicellulose
b. sporopollenin
c. lignin
d. cellulose
e. pectin
B
You might also like to view...
The specialized structure that stores pigments, water, inorganic ions and maintains turgor pressure is the
A. Golgi apparatus. B. vacuole. C. peroxisomes. D. vesicles. E. lysosomes.
Shigella species does not have what characteristic?
What will be an ideal response?
Answer the following questions true (T) or false (F)
1. During cleavage, the vegetal pole of a frog egg contains larger cells than the animal pole. 2. The lenses of the eye are produced from the endoderm. 3. Bicoid mRNAs are produced by the zygote.
The ________ is a group of proteins needed for DNA synthesis that assembles at the origin of replication.
A. prospore B. septum C. replisome D. None of the choices are correct.