invertebrate vocab Flashcards
(23 cards)
Vertebrates
organisms which have an internal backbone
Invertebrates
any animal that lacks a vertebral column
Consumer
a person who purchases goods and services for personal use.
Ganglion
soft, gel-like masses that often change size.
Gut
The gut refers to your gastrointestinal
Coelom
the body cavity in metastasize, located between the intestinal canal and the body wall.
Bilateral Symmetry
the property of being divisible into symmetrical halves on either side of a unique plane.
Radial Symmetry
symmetry around a central axis, as in a starfish or a tulip flower.
“starfish have a fivefold radial symmetry”
Asymmetry
lack of equality or equivalence between parts or aspects of something; lack of symmetry.
“there was an asymmetry between the right and left ears”
Sponges
invertebrate animals
Cnidarians
an aquatic invertebrate animal of the phylum Cnidaria, which comprises the coelenterates.
Flatworms
any parasitic or free-living invertebrate of the phylum Platyhelminthes, including planarians, flukes, and tapeworms
Roundworms
a nematode, especially a parasitic one found in the intestines of mammals.
Mollusks
an invertebrate of a large phylum which includes snails, slugs, mussels, and octopuses. They have a soft unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell.
Open circulatory system
Open circulatory systems are systems where blood, rather than being sealed tight in arteries and veins, suffuses the body and may be directly open to the environment at places such as the digestive tract. Open circulatory systems use hemolymph instead of blood.
Closed circulatory system
A closed circulatory system is comprised of the heart that pumps blood into the vessels to reach the tissues and organs. The exchange of gases in the bloodstream occurs between smaller vessels (capillaries) and tissues.
Annelid worms
Image result for annelid worms
Annelidasegmented worms(Also: ringed worms) The annelids include earthworms, polychaete worms, and leeches. All members of the group are to some extent segmented, in other words, made up of segments that are formed by subdivisions that partially transect the body cavity. Segmentation is also called metamerism.
Exoskeleton
Insects, spiders and shellfish are some of the invertebrates that have exoskeletons. The exoskeleton provides them with strength and support, as well as protecting the organs inside their bodies.
Compound eye
Most insects have compound eyes, which are curved arrays of microscopic lenses. Each tiny lens captures an individual image, and the mosquito’s brain puts all of the images together to achieve peripheral vision without the insect having to move its eyes or head.
Antenna
An antenna is a metallic structure that captures and/or transmits radio electromagnetic waves. Antennas come in all shapes and sizes from little ones that can be found on your roof to watch TV to really big ones that capture signals from satellites millions of miles away.
Metamorphosis
There are four types of metamorphosis (ametabolous, hemimetabolous, holometabolous, and hypermetamorphosis), each with different stages.
Endoskeleton
an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
Water vascular system
water-vascular system. noun. : a system of vessels in echinoderms containing a circulating watery fluid that is used especially for the movement of tentacles and tube feet.
