Light reaches organisms in the photic zone, where microscopic Phytoplankton and multicellular algae provide food for the animal community. Light levels in aphotic zone are too low to support photosynthesis. The seafloor is called the Benthic realm. Fishes and marine mammals swim in open water known as the Pelagic realm. A distinctive Biome called an Estuary is found where a freshwater stream or river merges with the ocean.
Photic zone is the surface layer of the ocean that receives sunlight, which means it permits photosynthesis by plants and phytoplankton. In aphotic zone , there is no light, therefore the phytoplankton and algae can not grow and undertake photosynthesis, the carbon dioxide is accumulated, there is less Oxygen and the pH is lower than in the photic zone.
The USDA Animal Welfare Act takes precedence over guidelines produced by the Public Health Service, Department of Veterans Affairs and other government agencies.
The United States Department of Agriculture (USDA) has a specialized unit, called USDA Animal Care, which administers the Animal Welfare Act (AWA). AWA sets the minimum standards of care and husbandry for animals used for commercial or research purposes and public exhibitions.
The answer is electron transport chain. It is a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples the electron transfer with the transfer of protons across a membrane. Electrons are transferred from NADH and FADH2 (proton donors) through the electron chain to oxygen, which is reduced to water. This process produces 34 ATP molecules and water from the carrier molecules.
Ecosystem levels of organization includes abiotic factors.
Answer: Option B
<u>Explanation:</u>
In science, the term species alludes to all creatures of a similar kind that are conceivably skilled, under regular conditions, of rearing and delivering rich posterity. The individuals from an animal type living in a given zone simultaneously comprise a populace. Every one of the populaces living and interfacing inside a specific geographic zone makes up a natural (or biotic) community.
The living life forms in a network together with their nonliving or abiotic condition make up an ecosystem. In general, an ecosystem it can be as little as a couple of mosquito hatchlings living in a downpour puddle or as huge as prairie extending crosswise over a huge number of kilometers.
Answer:
Infrared images also show thermal, or heat, radiation. While a visible-light image from this vantage point would simply show the face of the planet as dimly lit by sunlight reflected off the rings, Saturn glows brightly in this view because of heat from Saturn's interior.
In a second version of the image, scientists "stretched" or exaggerated the contrast of the data, which brings out subtleties not initially visible.
When these small particles are lit from behind, they show up like fog in the headlights of an oncoming vehicle.
• The C ring also appears relatively bright here; not because it is made of dust, but because the material in it -- mostly dirty water ice -- is translucent. In fact, in the 18th and 19th centuries, it was known as the "crepe ring" because of its supposed similarity to crepe paper.
• The wide, middle ring known as the B ring -- one of the easiest to see from Earth through telescopes because it is densely packed with chunks of bright water ice -- looks dark in these images because it is so thick that it blocks almost all of the sunlight shining behind it.
Explanation:
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