Even though hermaphrodites (male and female organs are present in the same individual) most earthworm species reproduce by cross-fertilisation, although some are parthenogenetic (Reproduction in which the ova develops without being fertilised by a spermatozoa, hence it involves only one parent). See similar questions...

Earthworms do not possess eyes, but they do have sensory cells with a lens like structure located in regions of the skin that respond to light stimuli. See similar questions...

Earthworms burrow thorough the soil by co-ordinating contractions of the longitudinal and circular muscle bands that lie in the body wall. These contractions are made possible by the segments being kept turgid by the coelomic fluid. This co-ordination allows the earthworm to pass contraction from segment to segment in a wave effect thrusting the earthworm forward. See similar questions...

When I first found my starling (rescued him from the neighbor's cat), he had gape worm (worms in his trachea, that caused him to cough). My vet cleared up the gape worm and the feather lice with Ivermectin. Earthworms are listed as an intermediate host for gape worm, so I wouldn't feed earthworms to my starling. I have fed him mealworms and crickets from a pet shop, and also garden spiders from a yard that I know isn't sprayed with any pesticides. See similar questions...

Yes. Triops are capable of hermaphroditic reproduction, which means that they don't need a partner - each Triops can lay eggs which will hatch once they have been dried out and added to water again ! See similar questions...

Charles Darwin was the first scientist to recognise the importance of earthworms which he described as “natures plough”. Today the beneficial effect of earthworms on the physical and chemical nature of soils is well established. Through their burrowing activities earthworms increase rainfall infiltration rates, improve soil aeration and allow greater root development. See similar questions...

In terrestrial ecosystems the main source of food (organic matter) is litter from above ground plants. However, dead roots and rhizodeposition (material transfer form roots to soil) are also important food resources and earthworms have been observed ingesting living roots. Within farming systems animal dung may also form an important, but localised, food source for several, usually litter dwelling, species and result in their aggregation under dung pats. See similar questions...

The majority of earthworm species are hermaphrodites possessing separate testes and ovaries that function simultaneously and reproduce by cross-fertilisation. However, some species can reproduce parthenogenetically (Reproduction in which the ova develops without being fertilised by a spermatozoa, hence it involves only one parent). See similar questions...

Permission to reproduce material from the BNFC is granted in certain circumstances and should be sought from The Executive Editor, Please note that the publishers do not permit the reproduction of any part of the BNFC for promotional purposes. See similar questions...

All typically-developing babies possess the capacity to understand and reproduce signs. Gesturing is part of a baby's natural communication process. Using standardized signs allows the baby a more specific and meaningful means of communicating. However, some babies may be unable to reproduce signs due to motor or cognitive delays. Should you have any concerns about your child's development, contact your pediatrician or Speech-Language Professional. See similar questions...

The average pound of red worms will contain between 800 - 1200 earthworms at various stages of development. See similar questions...

Less cultivation encourages beneficial insects (beetle and spider predators) as well as allowing the build up a larger earthworm population and biomass. Shallower cultivation/ direct drilling keeps trash on the soil surface which helps to stabilise soils and also builds soil health and structure which can reduce the risk of soil erosion if done correctly. See similar questions...

Research in the USA is currently looking into earthworms' anti-inflammatory properties for treating arthritis and other joint ailments and is also investigating other medical uses associated with earthworms' ability to burrow through and eat soil without being attacked by bacteria. See similar questions...

No, unfortunately one of the side effects of being dead means that they may not reproduce. This means any couples with a Living Undead will need to adopt. See similar questions...

With the proper permission (as most are copyrighted), any logo can be reproduced. Notice the sports rug depicted here. See similar questions...

Insects have widely varying means of reproduction, which depends mainly on temperature and humidity. The German cockroach has a reproduction cycle from egg to adult lasting six weeks to several months. Many fly species can breed a new generation in as little as two weeks, and under favourable conditions one female can produce several hundred offspring in a domestic environment. See similar questions...

You seem to have everything in order but do not mention the age of the above. Also I would recommend (personally) to use all kalk only...for make up water It seems strange to me that the snails are dying. IME some snails can be fairly delicate however over a reasonably short period of time 1 year + they should begin to reproduce in your tank. Then you end up with a much hardier snail.Typically the I have your book and have been changing water one week then the next. See similar questions...

You must obtain permission to reproduce our materials. All IML materials are protected by copyright from the Curators of the University of Missouri, which means that you cannot copy our materials in whole or in part without our permission. Contact Erica Kassel, (573) 882-2883, for permission to copy our materials or use them in anything other than the original form. See similar questions...