I N many benthic, colonial invertebrates, the capacity to distinguish conspecific self from nonself, or allo-recognition, plays a crucial role in determining the nature and outcome of somatic, and perhaps gametic, interactions (BUSS 1982, 1990; GROSBERG 1988). One of the most striking features of invertebrate allorecogni-tion systems is the extraordinary precision with which self can be disting...

Surface ozone (Surface O3)is a secondary pollutant and there are only limited studies on ozone in South India. Studies have revealed a strong correlation between higher ozone levels and warmer days. Surface O3 along with its precursors like NO2, CO and CH4 are being measured at Kanyakumari (8.0780° N, 77.5410° E), TamilNadu, India and in this paper we present the summer time variation of ozone ...

UALITATIVE characters can, by definition, be readily separated into pheno-Q typic classes having a correspondence with genotypic classes. However, in assessing the continuous variability of quantitative characters, class boundaries must be arbitrary, bearing no ascertainable correspondence with genotypic classes. This obscuration of class boundaries of quantitative characters stems from small e...

Surface ozone (Surface O3)is a secondary pollutant and there are only limited studies on ozone in South India. Studies have revealed a strong correlation between higher ozone levels and warmer days. Surface O3 along with its precursors like NO2, CO and CH4 are being measured at Kanyakumari (8.0780° N, 77.5410° E), TamilNadu, India and in this paper we present the summer time variation of ozone ...