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Invertebrates
Invertebrates are animals that lack a spinal cord, such as insects. Ask questions here about these organisms that make up 95 percent of all animal life.
1,408 Questions
No, grass snakes are not herbivores. They are carnivorous and primarily eat small animals such as amphibians, fish, insects, and small mammals.
How many cells does a diatom have?
A diatom is a type of algae that is a single-celled organism. Each diatom consists of a single cell that is enclosed within a cell wall made of silica.
No, diatoms are not zooplankton. Diatoms are a type of phytoplankton, which are microscopic photosynthetic organisms that form the base of the marine food chain. Zooplankton, on the other hand, are a diverse group of small animals that feed on phytoplankton and other organic matter in the ocean.
Water and nutrients are reabsorbed from the nephridia into?
The water and nutrients are reabsorbed from the nephridia into the blood vessels surrounding the nephridia. This process helps to conserve essential substances and maintain the balance of fluids and solutes in the body.
What is another name for nephridia?
There are several other names used when referring to nephridia. Some of these include metanephridium, protonephridia, and metanephridia. It is basically an invertebrate organ that performs similar functions as the kidney.
Diatoms are a type of phytoplankton with a distinctive cell structure made of silica, giving them a glass-like appearance. They come in various shapes, from circular to elongated, and can form intricate patterns and designs. Under a microscope, diatoms appear as colorful, geometric shapes with intricate detailing.
How do sea anemones eat their food?
Sea anemones are sessile and their food has to come to them by swimming past or by floating past on the currents.
They have stinging tentacles with which they paralyze their food and transfer it to their central mouth to ingest.
They filter the water and get all the bacteria from the water.
Sea anemones are carnivorous and primarily feed on small fish, shrimp, and other invertebrates. They use their tentacles to sting and capture prey, then transfer it to their mouth located in the center of their body for digestion. Some sea anemones also have a symbiotic relationship with certain types of algae, which provide them with nutrients through photosynthesis.
Diatoms and dinoflagellates are primary producers in marine ecosystems, playing a critical role in the food web by providing food for various organisms such as zooplankton, shellfish, and small fish. Their depletion could disrupt the entire marine ecosystem, leading to cascading effects on higher trophic levels. Additionally, these organisms are involved in the production of oxygen and carbon sequestration, affecting the global biogeochemical cycles.
A paramecium is not autotrophic. A paramecium is heterotrophic. The paramecium are single-celled organisms that are found in marine environments and stagnant ponds.
Not to us. They are very small fossilized particles that to our skin feels like talcum powder. To smaller creatures, they are sharp as glass. Diatomaceous earth is a product sold at most garden centers. These fossilized particles are used to keep smaller pests like ants and slugs from the stalks of plants. These small diatoms poke into the segmented parts of ants and the soft skin of slugs and snails, becoming an annoyance, and they leave.
Paramecium are commonly used in scientific research as model organisms to study cell structure, physiology, and behavior. They are also used in ecological studies to indicate water quality and in educational settings as a model organism for teaching basic biological concepts. Additionally, some cultures consume paramecium as a food source, although this is less common.
Sea star is another name for echinoderm star fish or sun star, which is a marine animal with spiny skin. Echinoderm means spiny skin in Greek, hence the name. Sea turtles, basking sharks, and sun fish are just a few of the predators of sea stars.
A paramecium eats by using its cilia to sweep food particles into its oral groove. The food particles are then engulfed by the paramecium and enclosed in a food vacuole. Digestive enzymes are then secreted into the food vacuole to break down the food particles for absorption.
Where do sea anemone live and how do they breathe?
Sea anemones live in marine environments such as coral reefs, rocks, and sandy sea floors. They breathe through their body walls by absorbing oxygen from the water through a process called diffusion. They have a simple circulatory system that helps distribute oxygen throughout their body.
What do the cell walls of diatoms contain?
The cell walls of diatoms are composed of silica, in the form of hydrated silicon dioxide (SiO2). This silica helps provide structure and rigidity to the cell walls, allowing diatoms to maintain their unique shapes and withstand environmental pressures.
A stylet-mouthed, thin-legged insect whose black, brown, colorless, green, or pink body ends in what looks like a tiny tail between a pair of two-clawed, two-jointed mini-legs is what an aphid looks like. The insect in question (Aphididae family) otherwise models the typical look of one pair each of compound eyes and sensory antennae skeleton on the exterior; three-part division of body into head, thorax, and abdomen; and three sets of jointed legs. An aphid simultaneously will be said to have the look of a pest since a pair of abdominal tubes releases defensive, triacylglycerol-rich cornicle wax and since piercing, sipping mouth-parts rupture plant tissue to remove life-sustaining phloem and xylem.
Diatoms are a type of phytoplankton that play a key role in aquatic ecosystems as primary producers, converting sunlight into energy through photosynthesis. They serve as a food source for various aquatic organisms and help regulate carbon and nutrient cycles in the environment. Their silica cell walls also contribute to sediment formation and nutrient cycling.
How do diatoms get their food?
they feed on stuff
Diatoms are almost all photosynthetic. Most of the biological energy production (and oxygen production!) on earth is due to photosynthesis, and a little under half of it occurs in the ocean. Diatoms are responsible for a large proportion of the total energy production of the oceans, possibly as much as a half...
They don't eat but make there own nutrients
How do diatoms shape help them survive?
Desiccated crystals or fibrils stick to surfaces when they are hydrated and when they contract they move the diatom along Centric diatoms ( marine) have radial symmetry in valve view and lack rapines and pseudoraphes . The outline of centric diatoms is usually circular, oval, or elliptical.
Frilled anemones are typically consumed by sea stars, nudibranchs, and some species of fish that can tolerate their stinging tentacles. Additionally, some crabs and shrimp may also feed on frilled anemones.
Crab spiders are white as adult females. The arachnids in question can be all white or yellow, with the color changing in accord with ambush hunting and environmental niche needs. The goldenrod crab spider (Misumena vatia) is a stunning example of such an arachnid coloration in North American species.
Which animals belong to the class hydrozoa?
Hydra , Obelia e.t.c. belong to Class Hydrozoa because the Characteristics of the animal that has a life cycle that includes a polyp and a medusa , gametes ectodermal .
They also belong to the Phylum Cnidaria witch means that they have stinging cells .
