Fertilization –introduction Amphibians accomplish fertilization of their eggs in a variety of ways. External fertilization‚ employed by most frogs and toads‚ involves a male holding a female in a pose called amplexus. In amplexus‚ the male releases sperm over the female’s eggs as they are laid. Less risky is the method employed by many salamanders whereby the male deposits a packet of sperm called a spermatophore onto the ground. The female then pulls it into her cloaca where fertilization occurs
Premium Meiosis Gamete Embryo
One of the greatest gifts we can give another human being is our unconditional presence. To do this well‚ we must be able to be receptive‚ without judgment or expectation‚ to put aside our own needs and concerns and be genuinely available in a warm‚ heartfelt manner. Yet we live in a culture that teaches and rewards us for being exactly the opposite: reactive‚ proactive‚ independent‚ assertive and opinionated. As a result‚ many people equate listening with passivity and weakness. We also live in
Premium Debut albums
Mapping the Supply Chain MKT/421 Mapping the Supply Chain Corrugated cardboard boxes are one of the main packaging materials used in production around the world. From the single wall tiny boxes used to protect fine jewelry inside larger shipping containers to the massive triple wall‚ multi-piece boxes used for industrial shipping‚ corrugated boxes have become a necessity in a world with increasing national and international trade. Corrugated boxes are lighter than wooden crates‚ provide more rigidity
Premium Pallet Cardboard
E_Mail_is_Better@Communicating.net Before telephones the only way to communicate with each other was to write letters. It took days before the letter got to the recipient and it took days for the writer to get the reply. Then telephones were invented and conversations became instant. Most people loved the telephone and its usefulness but some enjoyed and missed writing letters. Luckily E-mail was invented which allows people to write letters and send and receive them instantly. E-mail is a very
Premium Telephone
intermittent snorting sounds‚ etc.); 4. Absence of any neurological or medical condition of which daytime somnolence may be symptomatic. Nonorganic Disorder of SleepWake Schedule Diagnostic guidelines:1. The individual’s sleep-wake pattern is out of synchrony with the sleep-wake schedule that is normal for a particular society & shared by most people in the same cultural environment; 2. Insomnia during the major sleep period & hypersomnia during the waking period are experienced nearly every day for at
Free Sleep Sleep disorder
Psychology - Neuroplasticity Less than fifteen years ago‚ it was a known fact that the neural connections in the adult brain were hard-wired and the specific neurons in each brain area were only for that region’s form and function. Neuroscientists also believed that brain injury resulted in permanent loss of function because new neurons could not be created. In 1990‚ President George H. Bush‚ observing that "a new era of discovery is dawning in brain research" proclaimed the decade beginning
Premium Brain Cerebral cortex Cerebrum
Evidence of chemical communication during the gametogenesis of holothuroids. Ecology 77:1600-1616. Angela Mackey: Factors That Influence the Reproduction of Sea Cucumbers p. 7 of 8. Hamel‚ J.-F. and A. Mercier. 1999. Mucus as a mediator of gametogenic synchrony in the sea cucumber Cucumaria frondosa (Holothuroidea: Echinodermata). Journal of the Marine Biological Association of the United Kingdom 79:121-129. Himmelman‚ J. H. 1975. Phytoplankton as a stimulus for spawning in three marine invertebrates. Journal
Premium Reproduction
The behavior of nonverbal gestures at pauses in speech Studies that have examined bodily gesture reach a wide variety of conclusions as to the nature of gesture in relation to speech. Some hypothesize that the two occur in synchrony and are part of an integrated cognitive system ‚while others hypothesize that gesture is a paralinguistic phenomenon serving to aid speech production‚ and occurs more often when speech becomes difficult.These theories however are based on results from studies that
Premium Gesture
Athena Pheromones Review - Do They Really Work? Get the Details Here! The role of pheromones in humans and human relationships cannot be overemphasized. The maker of Athena Pheromones claims that they are proven to increase sexual attractiveness. Further search in different internet directories reveals that the owner of these pheromone formulas is known in the pheromone industry. Athena Pheromones are marketed in the maker’s main website of which I found it reviewed in one or two other websites
Premium Pheromone Pheromone Physical attractiveness
STAGES OF ATTACHMENT Secure and Insecure Attachment Elif Ercanli Johnson County Community Collage Attachment is a lasting emotional bond between people. According to Berger (2011) it begins before birth‚ solidifies age‚ and influences relationships throughout life. The concept of attachment was originally developed by John Bowlby (1969‚1973‚1988)‚ a British developmentalist influenced by psychoanalytic theory and ethology‚ the study of animals‚ a precursor to evolutionary psychology. ( Schore
Premium Attachment theory