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What does annelida mean?
Annelids are segmented worms, such as Earthworms. See the link below for a fuller description.
What animal evolved from segmented worms?
The general consensus among evolutionists is that fish evolved from segmented worms.
Earthworms were among the first organisms to display?
segmentation
How is the circulatory system of segmented worms unique among worms?
Segmented worms move by peristalsis. These are waves that flow through the body making the segmented worm turn and bend flexibly.
What is the physical features of an arthropod?
Among other features, Arthropods have segmented bodies, an exoskeleton made from chitin, and joint appendages.
Can rats be disease free?
Yes, laboratory rats are among the cleanest.
What are advantages of specimen record system?
Specimen record systems provide a centralized database for managing and tracking specimens more efficiently. They help reduce errors in specimen handling and identification, improve sample traceability, and facilitate communication among different departments or researchers involved in specimen collection and analysis.
Why are earthworms prey to birds?
Earthworms are prey to birds because they are smaller, slower, and are not capable of attacking birds.Also, many birds actually have two foveae in their eyes, while humans have one. The fovea is the part of the eye that is most sensitive and has the most photoreceptors. So with two focal points, such birds have very sharp vision and can see earthworms, among other prey.
Who tends to get Rat-bite fever?
Rat-bite fever occurs most often among laboratory workers who handle lab rats in their jobs, and among people who live in poor conditions, with rodent infestation
Among coelomates which of these develops by spiral cleavage and the mouth forms before the anus?
Annelids, such as earthworms, are coelomates that develop by spiral cleavage and have a mouth that forms before the anus during embryonic development.
What is are the functions of diverse organisms?
Diversity in large numbers help in large scale interaction among organisms such as in the food web In the nitrogen cycle, bacteria, plants have a crucial relationship, earthworms contribute to soil fertility.
What was Robert hooke's profession before becoming a scientist?
He was a gifted student and a talented laboratory assistant. Among the scientists that he assisted, were Robert Boyle, Christopher Wren, and John Wilkins.
