In bryophytes and some other plants, which of the following is a protective structure where sperm cells are formed?

a. archegonium
b. strobilus
c. stoma
d. antheridium

Ans: d. antheridium

Biology & Microbiology

You might also like to view...

Reproductive isolation is marked by the __________ of gene flow between populations. Fill in the blank(s) with the appropriate word(s)

View
Biology & Microbiology

Most of the body’s internal environment is at a pH

between a. 6.8 and 7.2 b. 7.0 and 7.2 c. 6.5 and 7.5 d. 7.3 and 7.5 e. 7.5 and 8.0

View
Biology & Microbiology

Select the properties of water that make it essential to life.

a. Cohesion b. Ionic bonding c. Adhesion d. Nonpolar covalent bonding e. High heat of vaporization

View
Biology & Microbiology

A vaccine additive which enhances the body's natural immune response is called a(n)

A) adjuvant. B) toxoid. C) attenuant. D) recombinant. E) booster.

View
Biology & Microbiology