In which marine environment would you find the greatest diversity of species quizlet?
In which marine environment would you find the greatest diversity of species? Most marine species are found in the: benthic environment.
What is the translation for asterina Miniata?
Asterina miniata is the scientific Latin name for the bat star. What is the translation for Asterina miniata? Which of the following is the most specific taxonomic grouping shared by common dolphins and bat stars?
What is the color pattern in which marine organisms are light on the bottom and dark on the top of their bodies camouflaging them against the water air interface called?
OCE Test 2 IV
| Question | Answer |
|---|---|
| The color pattern in which marine organisms are light on the bottom and dark on the top of their bodies camouflaging them against the water air interface is | countershading |
Which of the following kingdoms include various types of marine algae and single celled organisms called protozoa?
The taxonomic kingdom Protista is a collection of single-celled organisms that do not fit into any other category. Protists are a group made up of protozoa, unicellular algae, and slime molds. We will concentrate on the animal portion of this group: the protozoa (proto = first, zoa = animals).
What reason best explains the decrease in oxygen levels beneath the Epipelagic zone quizlet?
What reason best explains the decrease in oxygen levels beneath the epipelagic zone? Decomposition of organic material,Bacterial oxidation of dead organic material consumes oxygen. This also explains the corresponding increase in nutrient levels below the epipelagic zone!
What would likely happen if you placed a freshwater fish into seawater choose three answers?
They would be hypertonic to freshwater, so water would move by osmosis into the fish's cells. Conversely, if a freshwater fish were put in a saltwater aquarium, its cells would be hypotonic to the saltwater. They would lose water and shrivel. Either fish would soon die.
What is osmosis quizlet?
Osmosis. Movement of water from an area of high concentration to low concentration.
How have organisms in the spray zone adapted to the constant threats of predation and drying out?
How have organisms in the spray zone adapted to the constant threats of predation and drying out? They have a shell that they can withdraw into. In which zone are organisms usually submerged by high tide twice per day and exposed by low tide twice per day?
What are some characteristics of the epipelagic zone?
The Epipelagic zone is the uppermost layer of the ocean; it is located between the surface and 600 feet in depth. It is in this thin layer that all photosynthesis takes place. The epipelagic zone only represents 2-3% of the entire ocean, beyond this, light is too dim for photosynthesis to occur.
Which of the following is least likely to be seen in the epipelagic?
Which of these is least likely to be seen in the epipelagic? Deposit feeders.
What is the role of algae protozoans and fungi in marine ecosystems?
Algae, protozoans, and fungi include many decomposers and primary producers, absorb nutrients from their environments, live on and in other organisms, play an integral part in food webs, make nutrients, molecules, and compounds available to other organisms, and comprise vast amounts of sediment.
How does water temperature affect the water’s ability to hold gases How do marine organisms extract dissolved oxygen from seawater?
How does water temperature affect the water's ability to hold gases? How do marine organisms extract the dissolved oxygen from seawater? Reducing the temperature of seawater increases its capacity to hold gases in solution (cold water holds more dissolved gas in solution).
What is the surface layer of the ocean called?
The top surface layer is called the epipelagic zone, and is sometimes referred to as the "ocean skin" or "sunlight zone." This layer interacts with the wind and waves, which mixes the water and distributes the warmth.
What layers of the ocean can sunlight penetrate through?
The top zone is the euphotic or sunlit zone. This is the ocean zone that sunlight penetrates. Because this zone gets sunlight, photosynthesis can occur and plants can grow here.
What will happen to a marine fish if kept in freshwater aquarium Support your answer with reasons?
If a marine fish is placed in a freshwater aquarium, fish would not be able to survive because fishes are adapted to sea water, fishes body are hypertonic but when water moves to an aquarium it becomes hypotonic. They are unable to regulate the metabolic process in the changed environment and they die.
What will happen to the freshwater fish if you place it in sea water and why?
Freshwater fish regulate the amount of water going in and out of their bodies through several mechanisms like drinking less water and producing dilute urine. If freshwater fish are put in saltwater, they lose water from their bodies due to the hypertonic environment. Their cells shrivel and die.
What happens during osmosis?
Osmosis is the transport of a solvent through a semipermeable membrane that separates two solutions of differing solute concentration. During osmosis, the solvent moves from the solution that is lower in solute concentration to the solution that is higher in solute concentration.
What is osmosis and diffusion?
Osmosis is the movement of solvent particles from a solution that is diluted to a more concentrated one. In contrast, diffusion is the movement of particles from a higher concentration region to a region of lower concentration.
Which adaptation would help an organism survive in the intertidal zone?
Adaptations To The Variable Environment Small animals that live in the splash zone can avoid desiccation by closing their shells tightly to seal in moisture. Some animals, like crabs and marine snails and bivalves, have thick, tough outer coverings to slow evaporation.
What challenges are faced by the organisms living in intertidal zones?
Challenges in the intertidal zone include:
- Moisture: There are usually two high tides and two low tides each day. …
- Waves: In some areas, waves hit the intertidal zone with force and marine animals and plants must be able to protect themselves.
What is the source of oxygen in the epipelagic zone?
What is the source of oxygen in Epipelagic zone? Algae that live in the epipelagic zone are responsible for much of the original food production for the entire ocean and create at least 50% of the oxygen in the atmosphere (both through photosynthesis).
What happens in the epipelagic zone?
The epipelagic zone (or upper open ocean) is the part of the ocean where there is enough sunlight for algae to utilize photosynthesis (the process by which organisms use sunlight to convert carbon dioxide into food). Generally speaking, this zone reaches from the sea surface down to approximately 200 m (650 feet).
What are two components of the Epipelagic?
The epipelagic zone is divided into the neritic epipelagic zone, which lies over the continental shelf, and the oceanic epipelagic zone, which is the upper layer of water in the part of the open ocean that is not over the continental shelf.
What adaptations do Epipelagic fish have to be able to swim fast?
Most epipelagic fishes have streamlined or fusiform bodies (spindled-shaped like a submarine), that allow them to slide through the water more easily, which is important if you are swimming continuously. Many have adaptations that help them swim fast such as a lunate tail or a narrow caudal peduncle.
What is the role of algae protozoans and fungi in marine ecosystems quizlet?
The role of algae, protozoans, and fungi in the marine ecosystem as primary producers and decomposers.
What protists are unicellular algae with two part ornate cell walls made of silica?
Frustules. Diatoms are beautiful photosynthetic algal protists that come many shapes and sizes. These organisms have a unique cell wall made of silica glass called a frustule.
Why are dissolved oxygen concentrations highest in the Epipelagic zone?
The exact definitions and depths are subjective, but the following information is generally agreed upon. The epipelagic is also known as the surface layer or photic zone (where light penetrates). This is the layer with the highest levels of dissolved oxygen due to wave action and photosynthesis.
What causes dissolved oxygen to decrease?
Temperature increases, decaying aquatic plants and algae, fertilizers, and weather changes are common causes of low dissolved oxygen in the water.
What is the epipelagic zone?
1. The epipelagic zone (or upper open ocean) is the part of the ocean where there is enough sunlight for algae to utilize photosynthesis (the process by which organisms use sunlight to convert carbon dioxide into food). Generally speaking, this zone reaches from the sea surface down to approximately 200 m (650 feet).
What is the pressure in the epipelagic zone?
Answer and Explanation: The pressure in the epipelagic zone ranges from one atmosphere at the surface of the ocean to approximately 23 atmospheres at the lower limit of the…