My environmental padlet by Keshawn Davis

Bivalve

keshawndavis — 2024-01-18 15:40:03 UTC

Body enclosed in a shell consisting of two valves, hinged dorsally; no head or radula; wedge-shaped foot. Marine and freshwater. Anodonta, Mytilus, Venus. Approximately 300,000 species.

Cephalopod

keshawndavis — 2024-01-18 15:41:43 UTC

Foot modified into a circle of tentacles and a siphon; shell reduced or absent; head in line with the elongate visceral mass. Marine. Octopus, Loligo, Sepia, Nautilus.

Gastropod

keshawndavis — 2024-01-18 15:43:43 UTC

Shell, when present, usually coiled; body symmetry distorted by torsion; some monoecious species. Marine, freshwater, terrestrial. Nerita, Orthaliculus, Helix. More than 35,000 species.

Trochophore

keshawndavis — 2024-01-18 15:44:26 UTC

A larval stage characteristic of certain mollusks, as well as other invertebrates, featuring a ciliated, free-swimming body.

Visceral Mass:

keshawndavis — 2024-01-18 15:45:20 UTC

The central part of a mollusk's body that contains the internal organs.

Mantle:

keshawndavis — 2024-01-18 15:46:08 UTC

A fold of tissue in mollusks that secretes the shell (when present) and encloses the mantle cavity.

Torsion:

keshawndavis — 2024-01-18 15:46:46 UTC

A developmental process in gastropods where the visceral mass undergoes a 180-degree rotation, bringing the mantle cavity and anus over the head.

Mantle Cavity

keshawndavis — 2024-01-18 15:47:33 UTC

The space between the mantle and the body of a mollusk, housing the gills, reproductive organs, and excretory system.

Radula:

keshawndavis — 2024-01-18 15:49:06 UTC

A rasping, tongue-like organ found in most mollusks except bivalves, used for scraping food particles off surfaces.

Ganglion:

keshawndavis — 2024-01-18 15:49:43 UTC

A mass of nerve cells, particularly one that serves as a center of nervous coordination in invertebrates like mollusks.

Excurrent Siphon

keshawndavis — 2024-01-18 15:50:45 UTC

A structure in bivalves that expels water from the mantle cavity after it has passed through the gills.

Incurrent Siphon

keshawndavis — 2024-01-18 15:52:09 UTC

A structure in bivalves that directs water into the mantle cavity for filter feeding and respiration.

Hemocoel:

keshawndavis — 2024-01-18 15:55:31 UTC

The primary body cavity of most invertebrates, filled with hemolymph.

Hemolymph:

keshawndavis — 2024-01-18 15:56:13 UTC

The circulatory fluid of invertebrates, analogous to blood in vertebrates, found in open circulatory systems.

Carbon Cycle:

keshawndavis — 2024-01-18 15:56:58 UTC

The carbon cycle involves the movement of carbon atoms between the atmosphere, plants, animals, and the soil.

Nitrogen Cycle:

keshawndavis — 2024-01-18 15:57:35 UTC

Bacteria play a crucial role in the nitrogen cycle by converting nitrogen gas into forms usable by plants.

Phosphorous Cycle:

keshawndavis — 2024-01-18 15:58:11 UTC

The phosphorous cycle is essential for the transfer of this vital element between rocks, soil, and living organisms.

Ecological Succession:

keshawndavis — 2024-01-18 15:58:52 UTC

Ecological succession in a recently burned forest involves the gradual establishment of new plant and animal communities.

Primary Succession:

keshawndavis — 2024-01-18 15:59:31 UTC

Mosses and lichens are pioneers in primary succession, colonizing barren landscapes and initiating soil formation.

Secondary Succession:

keshawndavis — 2024-01-18 16:00:08 UTC

After a forest fire, secondary succession occurs as new vegetation grows in the previously established ecosystem.

Pioneer Species:

keshawndavis — 2024-01-18 16:00:44 UTC

Lichens are often pioneer species, paving the way for more complex plant communities in ecological succession.

Climax Community:

keshawndavis — 2024-01-18 16:01:55 UTC

Over time, a mature and stable climax community develops, representing the peak of ecological succession in an area.