Shark: The External Anatomy, Head, Trunk, and Tail

Sharks occur in over 400 different varieties. Each type of shark has a distinct appearance, diet, and behavior. Sharks may be found in all four oceans on the planet. Some sharks can fit inside a fish tank, while others are smaller than a school bus. Sharks come in a wide range of hues. Their skin tone usually makes it easier for individuals to blend in with their surroundings. However, certain sharks that dwell in the ocean’s deepest regions have sections that light at night. While some sharks can survive in freshwater, most sharks dwell in saltwater. Sharks all have different characteristics that make them special or make them unique. Sharks are a type of fish. Sharks and common fish have several similarities as well as differences. The cartilage that makes up a shark’s skeleton. Bones make up the skeleton of fish. The tough, flexible material found in people’s ears and noses is cartilage. Sharks have gills, just like other fish. Fish breathe through their gills. People use their lungs to absorb oxygen from the air, unlike fish. Fish use their gills to draw oxygen from the water. Sharks and fish need water to pass over their gills to acquire enough oxygen. Most sharks need to swim in water with a very high current to keep the water moving.

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Australian Umbrella Tree: Classification, Distribution, Description, Ecological Significance, and, Care for Umbrella Plants

A Member of the Araliaceae family of trees, Heptapleurum actinophyllum was formerly known as Schefflera actinophylla. Schefflera is an epiphyte in the genus. The tropics and subtropics are home to a large number of Schefflera species, which number over 650. The Schefflera looks a lot like an exotic, 25-foot-tall plant umbrella thanks to its huge, palmately complex, lustrous leaves perched atop its numerous, thin, naked trunks. Schefflera gives any landscape usage, from patio pots to interiorscapes to covered outdoor areas, a tropical feel. Schefflera will expand quickly to form a dense windbreak or screen for property lines and is capable of growing to a height of 40 feet. In the summer, trees that are growing in full sunlight will bloom, with an odd arrangement of tiny blooms on three-foot-diameter, rigid terminal clusters. These clusters, which are held above the foliage, are organized like the tentacles of an octopus or the ribs of an inverted umbrella. After the crimson blooms, half-inch reddish-purple fruits appear. Several Schefflera species’ leaves and bark are used as diuretics and cough remedies. The treatment of asthma, liver disorders, rheumatism, arthritis, sprains, fractures, stomach ache, antipyretic, anti-inflammatory, analgesic, migraine, and general tonic is among the ethnomedical uses of Schefflera (Ragasa et al., 2005). Caffeoyl acids, quercetin glycoside, and oleanolic acid glycoside are the primary components of S. venulosa extract, which promotes blood circulation and guards against cerebral and heart vascular disorders (Purohith et al., 1991).

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Babul (Acacia nilotica): Introduction, Classification, Origin, distribution, Plant Description, Chemical constituents, and, Uses

Acacia nilotica is often referred to as the Egyptian thorn, Babul, or prickly tree. The nitrogen-fixing tree legume acacia serves a variety of purposes. It can be found anywhere from the sea to a height of nearly 2000 metres. It can tolerate temperatures as high as 50 degrees Celsius and air dryness, but while it is young, it is vulnerable to frost. From Egypt through Mauritania south to South Africa, it is widely distributed in subtropical and tropical Africa. In Asia, it is widely distributed east to Pakistan and India.

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Buffalograss: Distribution, Habitat, Classification, Characteristics, and, Uses

Buffalograss is an indigenous, warm-season, stoloniferous perennial that reaches heights of 4 to 6 inches. The length and width of the leaf blade are 3 to 6 inches. A row of short hairs forms the ligule. It is a dioecious plant. The seed head is supported by a spike on both sexes. The male blooms have two or three small spikes on slender, upright stems, while the female flowers are burs partially concealed amid the leaves (Leithead et al., 1971).

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Mother of thousands Plant (Kalanchoe daigremontiana): Introduction Classification, Distribution, Description, Chemical constituents, and, Care

The succulent plant Kalanchoe daigremontiana, also known as The Mother of thousands, Alligator plant, Devil’s backbone, the Crown of thorns, or Mexican hat plant, is indigenous to Madagascar. It was formerly known as Bryophyllum daigremontianum. It can reproduce vegetatively through plantlets that form on its leaf margins, as well as by upshoots from lateral roots, seeds, and other Bryophyllum species (now included in the genus Kalanchoe). This species contains a very poisonous steroid called daigremontianin in all of its components.

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Starfish: Characteristic Features, Body wall, Water Vascular System, Digestive System, Excretion System, Nervous System, Circulatory System

Asterias forbesi can be found from low tide to a depth of about 50 meters along the majority of the eastern seaboard, from Maine to the Gulf of Mexico. This species integrates with closely related species, as is typical of the more specialized groupings of Asteroidea. On rocky or shelly bottoms, specimens are found alone or in sizable groups. Because it is a predaceous oyster-eating creature, this starfish is economically significant and has been the subject of in-depth research. This animal causes the oyster business to lose a lot of money every year. Along with oysters, the starfish also consumes clams, mussels, sea snails, dead fish, worms, and in some rare instances, other starfish.
It is known that starfish migrate at certain seasons, however, it is unclear what this migration looks like or how far it goes. This organism moves quite slowly, on average 6 inches per minute, according to observations of its locomotion. The isolated geographic distribution of this species, however, seems to suggest that the range of these creatures’ wanderings is quite small.
Like all other living things, starfish have natural adversaries. Cold and fresh water, different fish, gulls and crows, and parasites are a few of these harmful agents and natural enemies. The menhaden is undoubtedly the foe that causes the most damage to starfish. This fish only consumes the tiny aquatic organisms that float or swim in the water. Only once the sun has set are the starfish larvae safe from this fish. The scene involves a transformation procedure and attachment to a bottom-level object. The tiny algae and other small types of plankton make up the nutrition of the free-swimming larvae.
The starfish is vulnerable to parasite attack. The parasite organisms assault the starfish’s gonads, damaging the tissue and partially or completely rendering it sterile.

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Starfish (Asterias): Introduction, Classification, History, Habit and Habitat, External Features, Aboral Surface, and Coelom

Starfish: Interesting Facts
Sea stars, also known as starfish, are exquisite creatures that come in a variety of colours, forms, and sizes. The majority of starfish only have five arms, but certain species can have up to 40 arms, giving them all a starlike appearance. The fascinating marine organisms, which are echinoderms, use their tube feet to move about. With the help of their unique stomachs, they can devour huge prey and regrow damaged limbs.
1. A Sea Star Is Not A Fish
Sea stars are not actual fish, even though they are generally known as “starfish” and live underwater. Like fish, they lack fins, gills, and scales.
2. Echinoderms Are Sea Stars
3. There Are Numerous Species of Sea Stars.
4. Sea stars come in roughly 2,000 different species.
5. A Sea Star Does Not Always Have Five Arms
6. Arm Regeneration in Sea Stars
7. The Armor That Guards Sea Stars
8. No Blood Is Found in Sea Stars
9. Moving with their tube feet, sea stars have eyes, and they eat by turning their stomachs inside out.
10. True starfish are all members of the Asteroidea class.
11. Sea Stars Can Reproduce in Two Different Ways

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Cecile brunner: Introduction, History, Characteristics, Description, and Plant Tips for Care

How do you take care of a Cecile Brunner rose?
Ans: Full light is ideal for growing roses, and Cecile Brunner is no exception. for the best-built, healthiest canes. Additionally, allow for at least 6 hours of sunlight each day for the majority of blooms. These hardy roses, which bloom often throughout the summer, require a lush, rich setting that won’t become soggy and has excellent air circulation. For the best repeat blooms, water often. Regular fertilization is necessary for wholesome growth and blooming. Deadhead to encourage new flowers, and prune in the early spring. These thrive best with a thick covering of mulch and are extremely heat- and cold-resistant. A contemporary Rose’s ability to withstand salt, pollution, and pests

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Bauhinia variegata (Mountain ebony): Classification, History, Botanical Description, Chemical Constituents, and Health Benefits of B. variegata

The Bauhinia variegata is a small to medium-sized tree with a large crown and a short bole. The tree had a 50 cm diameter and a maximum height of 15 m. In comparison, trees are substantially smaller in dry forests. The bark is light brown grey in hue, soft to slightly fissured, and scaly. Bark’s inside is pinkish in hue, bitter, and fibrous. The twigs have a pleasing brownish grey color and are light green, zigzag when young, slender, angled, and to some extent hairy. The tree’s leaves have small, 1-2 mm stipules and an early caduceus. The petiole measures 3-4 cm and is puberulous to glabrous, but the lamina measures 6-16 cm in diameter and is often oval to spherical and much wider than elongated. The lobe tips are extensively rounded. Typically, the upper surface is glabrous, and the lower is glaucous, yet once fully mature, the lower surface turns glabrous. Racemes with no branches at the twig ends make up the flower clusters. Fewer blooms contain hypanthium, which is a stalk-like structure with a narrow, green basal tube and short stalks. A bright green bud with five-pointed angles and a hair-covered calyx that breaks apart on one side while the other two sides remain attached. The flower features five petals, which are somewhat asymmetrical, smaller at the base, and edged with curves. The flower also has five exceedingly thin, curled stamens, a stigma that resembles a dot, a curved pistil, and a single, narrow, green ovary (Patil et al. 2012). Each stiff, long, flat, band-shaped, diagonally striate, dehiscent pod bears 10–15 seeds. The seeds are nearly spherical through the coriaceous testa, flat, and brown (Dey and Das 1988; Prakash et al. 1978)

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Snowy orchid tree (Bauhinia acuminate): Classification, Geographical Distribution, Characteristics, Chemical Constituent, and Traditional Uses

Snowy orchid tree (Bauhinia acuminate): Classification, Geographical Distribution, Characteristics, Chemical Constituent, and Traditional Uses Introduction More than 300 species are represented by the gene Bauhinia, one of the largest genera in the caesalpiniaceae subfamily. In many mild temperate and sub-tropical regions, Bauhinia has been widely planted as an ornamental tree for gardens, parks, and roadside

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