AP BIOLOGY

Detailed explanation-1: -The Antherozoids of Bryophytes possess 2 flagella so we can say that Antherozoids of Bryophytes are biflagellated and have a long coiled body. Antherozoid are also called spermatozoids. These are male gametes produced in the antheridia of bryophytes, fungi, algae, pteridophytes, and some gymnosperms.

Detailed explanation-2: -The antherozoid of Lycopodium is pear shaped with two flagella at the anterior end. The biflagellate antherozoids of Lycopodium resemble more to the antherozoids of Bryophytes, rather than those of vascular plants.

Detailed explanation-3: -Antheridium and archegonium are the male and female sex organs of bryophytes, respectively. Antheridium produces motile male gametes known as antherozoids. Antherozoids are comma shaped and biflagellated. Archegonium produces egg.

Detailed explanation-4: -Antherozoids are the male gametes formed in bryophytes. These are borne in the antheridia, which are the male sex organs.

Detailed explanation-5: -Thereby antherozoids of Riccia are biflagellate. The female sex organ called archegonium is flask-shaped and produces a single egg. The antherozoids are released into the water where they come in contact with archegonium. An antherozoid fuses with the egg to produce the zygote.