1. the most significant development in earthworms probably is the appearance of the anus.
2. earthworms' nerve cords are also significantly developed.
3. the last one is the development of coelom, which is a new body cavity for organs like heart, lungs, etc..
The three major categories of biology, which are categorized by the organisms being examined, are: * Botany: The study of plants * Zoology: The study of animals * Microbiology: The study of microorganisms
The three major convection cells in the atmosphere are the Hadley cell, Ferrel cell, and Polar cell. The Hadley cell is near the equator, the Ferrel cell is mid-latitude, and the Polar cell is near the poles. These cells are responsible for redistributing heat and moisture around the globe.
Earthworm has five hearts= Earthworm hearts in action click on the link below = http://academic.scranton.edu/faculty/can... Colored diagrams on the link below = click onit = http://cache.eb.com/eb/image?id=72114&re... http://www.nrwmg.vic.gov.au/images/ana1....
The three major categories of evidence provided by the fossil record are body fossils (actual remains of organisms), trace fossils (impressions or structures left by past organisms), and chemical fossils (organic molecules preserved in rocks). These categories help scientists understand past life forms, their environments, and evolution over time.
Sergeant Major Morris obtained the monkey's paw during his time serving in India. He received it from a fakir, who put a spell on it to grant three wishes to the holder, but warned that the wishes would come with consequences.
One of the three major concerns of developmental psychology centers around the issue of continuity or stages. Developmental psychology is the study of the development and changes during a person's life.
Earthworm
One wold not describe the anatomy of an Earthworm in terms of "layers". For this reason we do not understand what you are asking.
An earthworm could only eat a somewhat decomposed three leaf clover having remnants imbedded in the soil through which the earthworm burrows.
The three examples of phylum annelida are earthworm,leech and whatever............
hot temp, humans, mutations
The three domains in developmental psychology are physical development (related to changes in the body and motor skills), cognitive development (related to changes in thinking, learning, and memory), and psychosocial development (related to changes in emotions, social relationships, and personality).
heart,esophagus,pharynx
precisly in the middle, the heart looks like three black sections from the outside. therefore three chambered
Really frinkin awsome.
motor functioning, sesnory region, vision and hearing
The three animals that feed on worms are birds, lizards, and frogs.