Marine Biology

No, most plants cannot tolerate salt water. Salt water has high levels of salt which can dehydrate plants, inhibit nutrient uptake, and damage their cellular structure. Some plants, called halophytes, have adaptations that allow them to thrive in saline environments, but these are the exception rather than the rule.

Marine worms protect themselves through various means such as burrowing into sand or mud, hiding in crevices, and developing toxic or unpalatable compounds in their bodies that deter predators. Some marine worms also have specialized structures like spines, bristles, or tough outer coverings that act as physical deterrents to predators.

Marine organisms are said to live in a "desert" because ocean waters, especially in open ocean regions, have low nutrient concentrations similar to those found in deserts. This makes it challenging for marine organisms to find food, just like how organisms in deserts struggle to find water. However, in contrast to deserts, the ocean is vast and teeming with life in certain areas.

Yes, a fish fin and a whale flipper are considered analogous structures because they have similar functions (swimming) but are derived from different evolutionary origins. Fish fins are adaptations for movement in water, while whale flippers are modified limbs evolving from a common ancestor with land-dwelling mammals.

A cat's eye shell has a smooth, rounded shape with a spiral structure that helps protect the soft body of the mollusk inside. The shell also features a wide opening to allow the head and foot of the mollusk to extend out for feeding and movement. Additionally, the glossy appearance and unique patterns on the shell may provide camouflage and protection from predators.

The two minnow populations likely evolved into separate species due to geographic isolation, genetic drift, and natural selection. Over time, differences in their environments caused genetic mutations to accumulate in each population, leading to reproductive isolation and the establishment of distinct traits that are better suited to their respective habitats.

Animals living in land are called terrestrial animals .All terrestrial animals breathe through their nostrils.but they respire through their lungs.aquatic animals such as fishes breathe through their gills.Gills a re the projections from their skin,they are themselves well supplied with oxygen.Amphibians such as frogs crocodiles crabs etc can live in both land and water.they do have lungs to breathe in land but in water, they breathe through their skin.insects like grass hoppers cockroaches etc. breathe through spiracles.Spiracles are just like our nostrils.they are holes by which they exchange gases.{oxygen and carbon dioxide}.But originally insects respire through trachea.The earth worms are insects that only breathe through their skin.Their skin are slimy and watery so gases can easily pass through them.

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crocodiles and crabs are not amphibia

gills are not projection from skin in all aquatic animals

nostrils and spiracles are part of respiratory system not a separate thing.

Suckers on a starfish, known as tube feet, are small, flexible, fluid-filled tubes that are part of the water vascular system. They work by contracting and expanding to create suction, allowing the starfish to anchor themselves, move, and capture prey. Tube feet also help the starfish control the flow of water in and out of their body, aiding in respiration and circulation.

The upper 180 m of the ocean is known as the photic zone where sunlight can penetrate. This zone has sufficient light for photosynthesis to occur, supporting a diverse range of marine organisms. Additionally, the temperature in this zone tends to be relatively stable and conducive to life, making it an ideal habitat for a wide variety of marine species.

The pectoral fins in both sharks and body fish are Lateral, which refers to them being located on the sides. Ventral would mean that the fins are on the bottom of the fish, which is not true.

It dissolves and forms carbonic acid, by:

CO2 + H2O ---> H2CO3

This is an important part of keeping your body fluids at a constant pH of 7.4. If you hyperventilate and "blow off" CO2 , your pH goes up (there's less acid) and bad things can happen.

Yes, zooplankton have mitochondria. Mitochondria are organelles found in most eukaryotic cells and are responsible for producing energy through cellular respiration. This process is essential for the survival of zooplankton, just like any other eukaryotic organism.

Sea shells do not live; they are the external skeletons of marine mollusks. The lifespan of the mollusk that created the shell varies depending on the species, but it can range from a few years to several decades.

Parapodia are paired appendages found on polychetes, or marine worms, which are used for movement. Tube feet are found on echinoderms, like sea stars, which are also used for movement.

Minimum admission requirements for marine biology programs typically include a high school diploma or equivalent, completion of specific science courses like biology and chemistry, standardized test scores (SAT or ACT), letters of recommendation, and a personal statement. Some programs may also require additional prerequisites such as lab experience or a certain GPA. It is important to check with individual schools for specific requirements.

Brine shrimp are small crustaceans that have a transparent body with segments, long antennae, and a pair of black eyes. They are typically less than 1 cm in size and have a curved tail that helps them swim in water. When they are still, they may appear as tiny, floating particles in water.

Yes, Harvard University offers marine biology courses through its Department of Organismic and Evolutionary Biology. Students can choose from various courses and research opportunities related to marine biology to study the complex interactions within marine ecosystems.

Marine biology can be challenging in college due to its interdisciplinary nature, combining elements of biology, chemistry, physics, and ecology. Students are often required to understand complex marine ecosystems and the unique adaptations of marine organisms. Success in marine biology classes typically involves strong critical thinking, problem-solving skills, and a solid foundation in scientific principles.

Animal cells typically have smaller and fewer vacuoles compared to plant cells. Animal cell vacuoles are mainly used for storage of small molecules and waste products, while plant cell vacuoles are larger and play a more prominent role in maintaining turgor pressure, storing nutrients, and sequestering toxins.

Photosystem II is older in terms of evolutionary history compared to Photosystem I. Photosystem II is thought to have evolved before Photosystem I as it evolved to oxidize water in order to provide electrons for the electron transport chain, which Photosystem I then uses to reduce NADP+ to NADPH.

Marine biology is a vast discipline incorporating every aspect of biology but with a marine emphasis, this ranges from ecology (which is heavily statistical) to physiology. So in Is_vector_calculus_and_differential_equations_needed_for_marine_biologyto your question, yes it is used, the need however depends on what path you take.

Crayfish respire through gills, which are located under their exoskeleton in the cephalothorax. Oxygen from water passes over the gills and diffuses into the crayfish's bloodstream, while carbon dioxide is released back into the water. This process allows the crayfish to obtain oxygen for cellular respiration and remove waste gases.

Zooplankton require sunlight for photosynthesis to occur, which is not available in the aphotic zone. Additionally, the benthic zone is the seafloor region where zooplankton would not typically dwell due to lack of nutrients and food sources, as well as potential predation risks.

The cutoff for bio-tech can vary depending on the specific university or program. Generally, competition for bio-tech programs can be high, so it is advisable to aim for a strong academic record, relevant experience, and good test scores to increase your chances of meeting the cutoff. It's recommended to check the specific requirements of the program you are interested in to know the cutoff score.

Estuarine Wetlands are wetlands occurring in the Estuarine System, one of five systems in the classification of wetlands and deepwater habitat . Estuarine wetlands are tidal wetlands that are usually semi-enclosed by land but have open, partly obstructed or sporadic access to the open ocean, and in which ocean water is at least occasionally diluted by freshwater runoff from the land. The most common example is where a river flows into the ocean