Similarly, the male sand goby is relentless about guarding his eggs from predators, but even if he has plenty of extra food available, he will still eat about a third of his brood. Research into how he decides which eggs to keep and which to eat reveals that size matters: male gobies tend to eat the largest eggs.
The CSB report found that the permit-required confined space rule set by OSHA does not prohibit entry or work in confined spaces where the concentration of flammable vapor exceeds ten percent of the chemical's lower explosive limit, or LEL.
Summary. The cerebrospinal fluid (CSF) is contained in the brain ventricles and the cranial and spinal subarachnoid spaces. The mean CSF volume is 150 ml, with 25 ml in the ventricles and 125 ml in subarachnoid spaces.CSF is predominantly, but not exclusively, secreted by the choroid plexuses.Brain interstitial fluid, ependyma and capillaries may also play a poorly defined role in CSF secretion.he mean CSF volume is 150 ml, with 25 ml in the ventricles and 125 ml in subarachnoid spaces. CSF is predominantly, but not exclusively, secreted by the choroid plexuses. Brain interstitial fluid, ependyma and capillaries may also play a poorly defined role in CSF secretion.