Invertebrate Vocab

Question 1

Porifera

Answer 1

Sponges are animals of the phylum Porifera. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells

Question 2

Cnidaria

Answer 2

Cnidaria is a phylum containing over 10,000 species of animals found exclusively in aquatic environments: they are predominantly marine species. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey.

Question 3

Annelida

Answer 3

The annelids, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches

Question 4

Hydroid

Answer 4

is a field-proven technology leader in advanced marine robotics specifically, Autonomous Underwater Vehicles

Question 5

Jellyfish

Answer 5

Jellyfish or jellies are the major non-polyp form of individuals of the phylum Cnidaria. They are typified as free-swimming marine animals consisting of a gelatinous umbrella-shaped bell and trailing tentacles.

Question 6

Platyhelminthes

Answer 6

The flatworms, or Platyhelminthes, Plathelminthes, or platyhelminths are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.

Question 7

Nematoda

Answer 7

The nematodes /ˈnɛmətoʊdz/ or roundworms constitute the phylum Nematoda. They are a diverse animal phylum inhabiting a very broad range of environments.

Question 8

Pinworms

Answer 8

The pinworm, also known as threadworm or seatworm, is a parasitic worm. It is a nematode and a common intestinal parasite or helminth, especially in humans.

Question 9

Tapeworms

Answer 9

Cestoda is a class of parasitic flatworms, of the phylum Platyhelminthes. Biologists informally refer to them as cestodes. The best-known species are commonly called tapeworms.

Question 10

Bivalves

Answer 10

The Bivalvia, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, comprise a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts.

Question 11

Cephalopods

Answer 11

A cephalopod is any member of the molluscan class Cephalopoda. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles modified from the primitive molluscan foot.

Question 12

Gastropods

Answer 12

a mollusk of the large class Gastropoda, such as a snail, slug, or whelk.

Question 13

Coelomate

Answer 13

Coelomate animals or Coelomata (also known as eucoelomates — “true coelom”) have a fluid filled body cavity called a coelom

Question 14

Acoelomate

Answer 14

an invertebrate lacking a coelom; especially : one belonging to the group comprising the flatworms and nemerteans and characterized by bilateral symmetry and a digestive cavity that is the only internal cavity.

Question 15

Radial Symmetry

Answer 15

arrangement of parts of an organism around a single main axis, so that the organism can be divided into similar halves by any plane that contains the main axis. The body plans of echinoderms, ctenophores, cnidarians, and many sponges and sea anemones show radial symmetry. Compare bilateral symmetry.

Question 16

Asymmetry

Answer 16

lack of equality or equivalence between parts or aspects of something; lack of symmetry.

Question 17

Bilateral Symmetry

Answer 17

Bilateral symmetry is a characteristic of animals that are capable of moving freely through their environments.

Question 18

Asymmetry

Answer 18

Lack of equality

Question 19

gastropods

Answer 19

na

Question 20

Tapeworms

Answer 20

Worms