Results 141 to 150 of about 690,322 (292)

Sexual and asexual reproduction in the colonial ascidian Botryllus schlosseri

open access: yes, 2015
The colonial tunicate Botryllus schlosseri is a widespread filter-feeding ascidian that lives in shallow waters and is easily reared in aquaria. Its peculiar blastogenetic cycle, characterized by the presence of three blastogenetic generations (filtering
F. Cima   +17 more
core   +1 more source

Preliminary study documents variable accuracy and inclusion among biology instructor gender/sex definitions

open access: yesNatural Sciences Education, Volume 55, Issue 2, December 2026.
Abstract Society generally presents sex inaccurately as a binary variable based on one or few trait(s), causing myriad issues, including the pursuit of reductionist biology experiments, the creation of laws that limit the rights of women, people with queer genders, and intersex folks, and greater student endorsement of gender stereotypes in ...
Emily P. Driessen   +4 more
wiley   +1 more source

Is facultative sex the best of both worlds in the parasitoid wasp Lysiphlebus fabarum?

open access: yesRoyal Society Open Science
The prevalence of sexual reproduction has long puzzled evolutionary biologists. This is because asexual parthenogenesis is a more efficient mode of reproduction, and all-else-being-equal, should predominate over sex.
Rebecca A Boulton
doaj   +1 more source

Knowledge and dispositions of school caring professionals regarding bisexual and pansexual students: A scoping review and meta‐synthesis of empirical literature

open access: yesReview of Education, Volume 14, Issue 3, December 2026.
Abstract Bisexual and pansexual students' self‐reported wellbeing and perceptions of school culture are influenced by the knowledge and dispositions of school caring professionals; however, synthesised research on this topic remains limited. This scoping review (ScR) consolidates empirical literature exploring the knowledge and dispositions of school ...
Amber Golden, Annette Brömdal
wiley   +1 more source

Early Contributions Leading to Understanding the Significance of Epichloë Endophyte in Temperate Grasses

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 5, October 2026.
The role and use of Epichloë fungal endophytes in grazed temperate grass pastures and turf grasses are now well understood with regard to balancing pasture persistence while minimising animal health and welfare concerns. However, this understanding has only emerged since the early 1980s. Prior to this, although links between Epichloë endophytes, animal
John R. Caradus   +2 more
wiley   +1 more source

The relationship between diameter at breast height and coppice production of Parrotia persica (Case study: Kheyrud forest) [PDF]

open access: yesمجله جنگل ایران, 2013
Parrotia persica is one of the few species growing naturally in the northern forests of Iran. This specie is reproduced through asexual reproduction by coppice (shoot).
doaj  

Nanomaterials' Multigenerational Effects by Single and Joint Exposure in Non‐mammalian Models

open access: yesEnvironmental Toxicology, Volume 41, Issue 10, Page 957-974, October 2026.
ABSTRACT Nanotoxicology has mainly focused on single‐generation studies, leaving multigenerational toxicity underexplored. Having animal welfare recently gained importance, we aimed to provide the state‐of‐the‐art of knowledge about multigenerational effects in non‐mammalian models in the case of nanomaterials (NM) single and joint exposure to other ...
Andy Joel Taipe Huisa   +9 more
wiley   +1 more source

Identification of an innexin required for termination of the asexual state in planarian reproductive switching.

open access: yesPLoS Genetics
Many metazoans switch between asexual and sexual reproduction based on environmental changes, life cycle phases, or both. This reproductive strategy enables them to benefit from the features of both reproductive modes. In general, asexual reproduction is
Nobuyoshi Kumagai   +18 more
doaj   +1 more source

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