What is the meaning of Antennule?

: a small antenna or similar appendage.

What is the function of a Antennule?

The antennules are organs of balance, touch, and taste. Long antennae are organs for touch, taste, and smell. The mandibles, or jaws, crush food by moving from side to side. Two pairs of maxillae hold solid food, tear it, and pass it to the mouth.

What is the difference between Antennules and antennae?

As nouns the difference between antenna and antennule is that antenna is a feeler organ on the head of an insect, crab, or other animal while antennule is (zoology) a small antenna.

What does the name Telson mean?

: the terminal segment of the body of an arthropod or segmented worm especially : that of a crustacean forming the middle lobe of the tail.

What is the meaning of carapace in English?

1 : a bony or chitinous case or shield covering the back or part of the back of an animal (such as a turtle or crab) 2 : a protective, decorative, or disguising shell the carapace of reserve he built around himself— M. M. Mintz.

What is a crayfish rostrum?

Rostrum: The long spike that sticks forward from the head between the eyes. Telson: The middle “panel” of the tail. Uropods: The two pair of “fans” on either side of the telson that make-up the tail, used for swimming. Walking Legs: Limb of a crayfish used for forward motion.

What are three functions of the 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.

How does the shape of the Maxillipeds fit their function?

How is the cheliped shaped to fit its function? The first five segments of the abdomen each have a pair of swimmerets, which create water currents and function in reproduction. All of the swimmerets in the female are small and soft. In the male, the first two pairs are hard and modified for transferring sperm.

Which is longer antenna or Antennule?

Antenna. —The antenna is larger than the antennule with a basis that is oval in cross-section and tapers slightly to the point at which the flagellar rami attach. The distal ramus is a short, slender flagellum. The medial ramus has a short, broad base that tapers abruptly into a flagellum (Fig.

Is antenna a form?

The plural noun form of “antenna” comes in two flavors: “antennas” and “antennae.” If you look up antenna in an English dictionary, you’ll see that the plural, antennas, is used to refer to electrical instruments, and antennae, to the protuberances found on the heads of insects.

What is an Aculeus?

zoology. : a sharp-pointed process specifically : an insect’s ovipositor especially when modified into a sting.

What is a Gnathobase?

Gnathobase (nath – oh – base) The expanded and hardened base of the appendage of many arthropods, notably trilobites, crustaceans, and marine cheliceramorphs. Used to macerate food items before ingestion. Instar (in – star) An arthropod between molts.

What is the meaning of the word antennules?

n. Zoology A small antenna or similar organ, especially one of the first pair of small antennae on the head of a crustacean. [French, diminutive of antenne, antenna, from Medieval Latin antenna, sail yard; see antenna .] American Heritage® Dictionary of the English Language, Fifth Edition.

Is the term B ethics singular or plural?

b ethics plural in form but singular or plural in construction : the principles of conduct governing an individual or a group professional ethics.

Which is the best definition of the ethic?

Definition of ethic. 1 ethics plural in form but singular or plural in construction: the discipline dealing with what is good and bad and with moral duty and obligation.

How is the word ethic used in a sentence?

Ethic definition is – the discipline dealing with what is good and bad and with moral duty and obligation. How to use ethic in a sentence. Ethics vs Morals: Is there a difference?