What is Uniramous?

: consisting of a single process : unbranched the appendages of crustaceans may be uniramous or biramose.

What does Cheliped mean in biology?

: one of the pair of legs that bears the large chelae in decapod crustaceans.

What is a Biramous appendage?

biramous appendage A type of appendage that is characteristic of arthropods of the phylum Crustacea. It forks from the basal protopodite to form two branches, the inner endopodite and the outer exopodite (see illustration). Each of these branches can be composed of either one or more segments.

What does the word mandible?

1a : jaw sense 1a especially : a lower jaw consisting of a single bone or of completely fused bones. b : the lower jaw with its investing soft parts. c : either the upper or lower segment of the bill of a bird.

What are bugs arms called?

Antennae, sometimes called “feelers”, are flexible appendages located on the insect’s head which are used for sensing the environment.

What are Saltatorial legs?

Saltatorial is a phrase used to describe the legs of some insects and other invertebrates that are modified for jumping. The legs are much larger than the other two pairs of legs and allow these insects to jump a considerable distance.

What is the meaning of Gastrovascular?

: functioning in both digestion and circulation the gastrovascular cavity of a jellyfish.

What is the purpose of Swimmerets?

Tell the students that the swimmerets have three functions. They help the crayfish swim, they move water over the gills for respiration, and on the female they hold the larva.

What does Mesially mean?

1 : being or located in the middle or a median part the mesial aspect of the metacarpal head. 2 : situated in or near or directed toward the median plane of the body the heart is mesial to the lungs — compare distal sense 1b.

What is the upper jaw called?

maxilla
The upper jaw holds the top teeth in place and supports muscles involved in chewing and facial expressions. It is a major bone in the face. Also called maxilla.

Which is the best definition of the word biramous?

adjective Biology. consisting of or divided into two branches: a biramous appendage.

What is the dictionary definition of biramous appendage?

All rights reserved. consisting of or divided into two branches: a biramous appendage. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc.

What is the origin of the biramous limb?

‘An answer lies, he says, in the origin and modification of the ancestral biramous limb.’ ‘The appendages are primitively branched, and although this condition is modified in many species, adults always have at least some biramous appendages.’

How many branches does A biramous tree have?

Consisting of or having two branches, as the appendages of an arthropod. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company.