Invertebrates

The phylum Chordata is defined by four characteristic traits: Pharyngeal gill slits, a notochord, a dorsal hollow nerve cord, and a muscular post-anal tail.

There are three subphyla of Chordates: Urochordata, Cephalochordata, and Vertebrates.

So it depends on what species you are dealing with if you are looking at specifics. But a spine is not a characteristic of all chordates.

Centric diatoms have a spherical shape that helps them float and stay suspended in the water column, which is more common in saltwater environments with consistent water movement. Pennate diatoms have a more elongated shape that allows them to attach to surfaces in freshwater environments where there may be less water movement. This difference in shape relates to their respective preferences for saltwater and freshwater habitats.

In 1703, an anonymous English microscopist sketched and described the first known diatom, Tabilarria Flocculosa. His sketches were published by the Royal Society of London. His name is yet to be known until this day.

Paramecium look like little peanuts or slippers, with one end coming to a point. They are very tiny, (about 0.02 in) and you will need to look under a microscope to see one, and it is very difficult as they move quickly.

Yes, centric diatom are algae that are species that display radial symmetry. Diatoms are like clams, they have a two-part silica cell wall, called frustules. Diatoms are then divided into two groups based on the symmetry of their frustules, bilaterally symmetrical are called pennate diatom and centric diarom are radial symmetrical.

Paramecium are typically found in freshwater environments such as ponds, lakes, and slow-moving streams. They are also commonly found in microbiology laboratories where they are studied as model organisms.

The body of a sponge is made up of many pores and channels through which water circulates to bring in food and oxygen and remove waste. It is supported by a skeleton made of a flexible protein called spongin or hard structures called spicules. Sponges have no true tissues or organs and rely on specialized cells for various functions.

Ever since the atom joined with another atom to create a diatom, it has been the greatest structure in the universe. However, when the polymer was created, which has not just two atoms, but many thousands of atoms, the diatom has been bitter with jealousy that it is no longer the biggest fish in the pond. Therefore the polymer is the diatoms enemy.

Yes, phytoplankton are a type of microorganisms that include many types of algae. They are microscopic, photosynthetic organisms that drift in water bodies and form the base of the aquatic food chain.

No, an olm is not an invertebrate. It is a species of aquatic salamander belonging to the order Caudata, which are vertebrates.

Trilobites. They are an extinct form of marine life. They lived on the sandy ocean floors and in coral reefs.

Diatoms are photosynthetic organisms that obtain their energy from sunlight, using chlorophyll pigments to carry out photosynthesis. They also absorb nutrients from their environment, such as nitrates, phosphates, and silicates, to support their growth and reproduction. Diatoms have specialized structures, such as silica cell walls and organelles called raphes, which help them take in and process these nutrients.

Examples of parasitism in boreal forests include fungi like the Indian pipe (Monotropa uniflora) that parasitizes on mycorrhizal fungi associated with tree roots, thereby obtaining nutrients without photosynthesizing. Additionally, there are parasitic plants like the dwarf mistletoe (Arceuthobium) that invade tree species like spruces and firs, drawing nutrients from their host trees.

Yes, they are because they have at least one nucleus

Metapenaeus monoceros

and also potamalpheops sp.

Sucking up moisture is the main use of the proboscis by those butterflies [Lepidoptera] that have them. The main food that they seek is nectar from flowers. But they also favor sucking up soluble nutrients from mud puddles.

An invertebrate has no backbone. This differentiates them from vertebrates, which do have a backbone or spinal column. Invertebrates make up the vast majority of animal species on Earth.

Chemically and physically are the ways in which an aphid communicates. The insect in question (Aphidoideasuperfamily) lets its biological needs be granted by emitting chemicals, its food preferences be known by piercing plant parts for sap and its offensive/self-defensive requirements be met by producing honeydew to attract bodyguard-serving ants.

The phylum name of the Giant Green Anemone is Cnidaria.

Yes, krill do eat diatoms. Diatoms are a type of microscopic algae that krill feed on as part of their diet. These tiny plants are an important food source for many marine organisms, including krill.

The Age of the Invertebrates, also known as the Paleozoic Era, occurred approximately 542-251 million years ago. This era was characterized by the dominance and diversity of invertebrate animals, with significant evolution and diversification of marine life during this time.