Invertebrates

Invertebrates animals that have no spinal column. Please contribute to this project, if you have more information about this term feel free to edit this page ...

invertebrates Animals without backbones. involucre Whorl of bracts that subtend a flower or an inflorescence. involuntary Nervous system Stimulates smooth and cardiac muscle and glands of the body. Full article ...

Invertebrates Lancelet Branchiostoma lanceolatum Tunicates Sea urchin Round worm Caenorhabditis elegans Fruit fly Drosophila melanogaster (Drosophila embryogenesis) ...

Invertebrates Sea urchin Round worm Caenorhabditis elegans Fruit fly Drosophila melanogaster (Drosophila embryogenesis) ...

Invertebrates Tapeworms Blood flukes Games Parasites Play (some interesting interactions between host and parasite).

Invertebrates Fenestrate bryozoans were particularly common in the early Carboniferous seas. Archimedes, a corkscrew-shaped fossil, represents the secreted support of a colony of bryozoans that are usually no longer present.

In invertebrates with an open circulatory system, the body fluid that bathes tissues. hepatic [Gk. hepatikos, liver] Pertaining to the liver.

Most invertebrates have a single cluster of homeotic genes. In Drosophila that cluster is broken in two. Vertebrates have four copies of the cluster, strongly suggesting that the cluster had been duplicated twice in vertebrates.

molluscs Invertebrates with a soft, unsegmented body, a muscular foot, and, with some exceptions, a calcareous shell.

Fresh water invertebrates and vertebrates have a greater salt concentration in their body than in their surrounding medium. If they have a permeable skin, water tends to enter the body and salt tends to be lost from the body.

larva -- Among invertebrates, an immature stage in the life cycle which usually is much smaller than, and morphologically different from, the adult. In insects with metamorphosis, the larva must become a pupa before reaching adulthood.

Biology of the Invertebrates: Biology of the Invertebrates bol.de - Das einfach runde Partnerprogramm A-Level Biology: A-Level Biology ...

Animal - kingdom composed of multicellular organisms divided into two divisions: vertebrates and invertebrates, who obtain their food from external sources and reproduce sexually or asexually ...

Two classes of intracellular lectins involved in glycoprotein trafficking are present in yeast, model invertebrates and vertebrates, and two other classes are present in vertebrates only.

Many invertebrates are similarly well endowed, and last I heard, the mantis shrimp was the winner of the contest of who has the largest number of photoreceptor classes.

Mite: Any of several minute invertebrates belonging to the phylum Arthropoda, class Arachnida. Morphology: Form or structure of an organism. Multivoltine: Having more than one brood or generation per season.

The cleavage process in molluscs and some invertebrates whereby orientation of the spindle at mitosis is at an angle to the original egg axis. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...

haemocoel The body cavity of invertebrates, arthropods, and mollusks. As to the coelom, the haemocoel never opens to the exterior and it does not contain germ cells.

The outmost layer of cells of the body of an animal. In invertebrates the epidermis is normally only one cell thick and is covered by an impermeable cuticle. In vertebrates the epidermis is the thinner of the two layers of skin.

Reverse Bohr effect. Effect that occurs when lactate builds up in the blood of certain invertebrates and pH decreases, increasing the affinity of hemocyanin for oxygen ...

microbial pesticides. Pesticides that consist of bacteria, fungi, viruses, or other microorganisms used for control of weeds, invertebrates, or plant pathogens.

Diploblast: A lower invertebrate such as jelly fish that are composed of two tissue layers (ectoderm and endoderm) and lacking the third layer (mesoderm) present in higher invertebrates and vertebrates.

See also: Vertebrates, Invertebrate, Organ, Animal, Trans