Pollen tubes

A. package sperm into pollen granules.
B. facilitate the growth of pollen.
C. allow sperm to fertilize the egg.
D. transport pollen to the stigma.
E. are present during spermatogenesis.


Answer: C

Biology & Microbiology

You might also like to view...

The organs of excretion in flatworms are

a. nephridia. b. contractile vacuoles. c. Malpighian tubules. d. flame cells. e. book lungs.

Biology & Microbiology

The code is nonoverlapping, meaning that, assuming "standard translation," a given base participates in the specification of one and only one amino acid

Indicate whether the statement is true or false

Biology & Microbiology

Classification.The following are basic building blocks of biopolymers. Match the building blocks with the statements below.

A. The basic unit of proteins B. The monomers of a polypeptide chain C. The basic unit of cellulose D. The basic unit of glycogen E. The basic unit of starch F. The hydrophilic component of a type of lipid G. The hydrophobic component of a type of lipid H. The basic unit of DNA I. The basic unit of RNA J. Which two units combine in various ways to form lipids?a. a and bb. a and cc. b and cd. b and de. c and d

Biology & Microbiology

Although antivenom can save lives, it can also cause what type of reaction in certain patients?

A) type II hypersensitivity B) autoimmune type III hypersensitivity C) nonautoimmune type III hypersensitivity D) type I hypersensitivity E) type IV hypersensitivity

Biology & Microbiology