منابع مشابه
Increased RBC count and pulmonary respiration in cold-adapted frogs.
1. Haematological and respiratory parameters (including RBC count, CO2 content and percentage oxygen saturation) were studied in coldacclimated (12 ± 1 °C) and normal frogs (23 + 2 °C). 2. Seasonal variation in RBC count was found, the count being higher in January than in September. Females showed higher counts than males. Coldacclimation resulted in the elevation of counts in all seasons and ...
متن کاملCisplatin cytotoxicity is dependent on mitochondrial respiration in Saccharomyces cerevisiae
Objective(s): To understand the role of mitochondrial respiration in cisplatin sensitivity, we have employed wild-type and mitochondrial DNA depleted Rho0 yeast cells. Materials and Methods: Wild type and Rho0 yeast cultured in fermentable and non-fermentable sugar containing media, were studied for their sensitivity against cisplatin by monitoring growth curves, oxygen consumption, pH changes ...
متن کاملVocal communication in frogs.
The robust nature of vocal communication in frogs has long attracted the attention of natural philosophers and their biologically inclined successors. Each frog species produces distinctive calls that facilitate pre-mating reproductive isolation and thus speciation. In many terrestrial species, a chorus of simultaneously calling males attracts females to breeding sites; reproductive females the...
متن کاملTúngara frogs
Why are they called túngara frogs? As in most frog species, males call to attract females. Unlike most other frog species, túngara frogs produce both simple and complex calls. A simple call consists of a frequencymodulated sweep called a ‘whine’, while a complex call is a whine plus one to six or seven broadband ‘chucks’. The name ‘túngara’ frog is onomatopoeically derived from the male’s call:...
متن کاملPoison frogs
Stynoski et al. introduce the dendrobatids, a charismatic group of frogs known for their colourful and often poisonous skin.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1904
ISSN: 0028-0836,1476-4687
DOI: 10.1038/069489d0