antheridia in a sentence

1) The male organs are known as antheridia ("sing.

2) Antheridia : Small spherical structures that produce flagellate sperm.

3) Ribbed bog moss antheridia do not develop synchronously on the same stem.

antheridia example sentences

4) Antheridia and archegonia develop on the mature plant (the gametophyte).

5) Smaller spores tend to germinate into gametophytes which produce only sperm-producing antheridia .

6) Microspores germinate producing microgametophytes; at maturity one or more antheridia are produced.

7) Male and female stems develop antheridia and archegonia, respectively, at their tips.

8) Sperm develop within the antheridia .

9) Mature male and female stems develop antheridia and archegonia, which produce sperm and eggs, respectively.

10) Dioicous - Having two forms of gametophyte, one form bearing antheridia and one form bearing archegonia.

11) The gametophytes or thallus, produce both motile sperm in the antheridia and egg cells in separate archegonia.

12) The male organs are known as antheridia ("singular:" antheridium) and produce the sperm cells.

13) Ribbed bog moss may also regenerate when paraphyses (minute filaments arising from ribbed bog moss's antheridia ) detach.

14) Monoicous - Having a single form of gametophyte bearing both antheridia and archegonia, either together or on separate branches.

15) Clusters of antheridia are enclosed by a protective layer of cells called the perigonium ("plural:" perigonia).

example sentences with antheridia

16) The antheridiophores have terminal inflated antheridia on their branches; these undergo meiosis and form 64-128 biflagellate male gametes (antherozoids).

17) Mature and immature antheridia are intermixed on individual male shoots; therefore, sperm cells on the same stem do not all develop at the same time.

18) In either case, the sperm must move from the antheridia where they are produced to the archegonium where the eggs are held.

19) In the presence of water, the biflagellate sperm from the antheridia swim to the archegonia and fertilisation occurs, leading to the production of a diploid sporophyte.

20) It is dioicous: male plants produce only antheridia in terminal rosettes, female plants produce only archegonia in the form of stalked capsules.

21) These house the male and female reproductive structures known as antheridia (borne on antheridiophores) and oogonia (containing 8 eggs), respectively.

22) Paraphyses - Sterile hairs surrounding the archegonia and antheridia

23) " antheridia and archegonia occur on different gametophytes," which are then called dioicous.

24) " antheridia and archegonia occur on the same gametophyte," which is then called monoicous.

25) capable of producing fertilization, but not of bearing fruit; -- said of stamens and antheridia , and of the plants, or parts of plants, which bear them

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