Which of these is unique to flowering plants?

a. an embryo surrounded by nutritive tissue
b. double fertilization
c. pollen production
d. haploid gametophytes
e. a dominant sporophyte generation


Ans: b. double fertilization

Biology & Microbiology

You might also like to view...

Amino acids, dipeptides, and sugars are transported from intestinal epithelial cells into circulation. Lipids are first transported from the intestinal epithelium into _____

A) smooth muscles that make up the core of the villi of the intestinal epithelium B) the lymphatic system C) the liver D) the gallbladder

Biology & Microbiology

An irregular cluster of spherical bacterial cells is termed ________.

A. staphylobacillus B. streptococcus C. staphylococcus D. staphylospirillum E. streptobacillus

Biology & Microbiology

Which region of the lac operon would you target if you want to disrupt the -10 and -35 consensus sequences?

A) lacZ B) lacY C) lacI D) lacP E) lacO

Biology & Microbiology

Egg activation by sperm entry is associated with a sudden increase in protein synthesis. What must be true of these proteins?

A. They are from maternal mRNAs. B. They are from paternal mRNAs. C. They are small peptides. D. They are histone proteins.

Biology & Microbiology