Both!The foraminiferal life-cycle involves an alternation between haploid and diploidgenerations where multiple rounds of asexual reproduction between sexual generation.
No, lampreys do not have a placenta. They are a type of jawless fish that reproduce by laying eggs, and their young develop outside the mother's body. In contrast to mammals, which have placentas to nourish developing embryos, lampreys rely on external fertilization and do not provide maternal support during gestation.
Surfeit of Lampreys was created in 1941.
Sea lampreys drink or eat blood
Sea Lampreys have been known since ancient times.
Sea lampreys are fish.
lampreys are only hunted by man
No, lampreys are a cartilaginous fish, and being made of cartilage, they have no bones.
Lampreys differ from hagfishes by having a notochord that is surrounded by a tube of cartilage.
Birds and mammals are air breathers. Lampreys are not.
blood
no