Correct question: A fast swimming strong body fish such as a <u>salmon</u> which is adapted to clear fast and strong water current would most likely be found in which aquatic zone? Options in the attached file
Answer:
Source of a river zone
Explanation:
The fishes body is directly correlated with their environment and the pressures they receive from it. Those animals that are used to living in clear waters, with fast currents must be very strong, must have a hydrodynamic torpedo-like body and big and strong caudal fin to propel against the currents. These animals are used to living in water masses such as the source of a river zone.
Rivers belong to lotic environments, characterized by constant moving water.
- Profundal zone: Sunlight can not reach this zone, so there are no plants. The Water movement is very limited, and in most cases, water is not clear.
- Littoral zone: Is the transition zone, near the shore, where the light easily reaches the bottom. Usually, there is plenty of vegetation fixated to the bottom.
- Wetland zone: In general these are calm water, very rich in diversity, and a proper breeding area for a wide variety of fish.
- Source of a River zone: Rivers flow from higher to lower areas. They originate at the top of the mountains and fastly descend to finally end in a lake or in the sea.
Some species of salmons characterize by living in the sea during sexual maturity, but whenever they need to breed, they go back to the area where they were born. This is in sweet water. They swim in the river until they reach the place where they are going to oviposit. In order to do this, they need to swim against the current. Many times, females die trying to reach this special place.
Answer:
c. Context
Explanation:
PPCT model is bio-ecological model that has further four components; process, person, time and context. In which context includes, microsystem, macrosystem, exosystem and mesosystem. Thus, context have all those systems which are part of our surrounding that are responsible in development of one's actions.
<span>Cohesion- attraction of molecules of the same substanceCauses water molecules to be drawn together to form a smooth surface (surface tension)adhesion- attraction of molecules to different substances<span>The correct answer is A because the cohesion causes water to form in drops, and adhesion allows it to stick to different substances, such as the pine needles</span></span>
Transitional fossils are fossils that are "between" some species, for example that have traits of Homo Sapiens and its ancestor species, Homo Heidelbergensis (or homo erectus).
They show the evolutionary steps between species. - the correct answer is a.
The answer to the question is 7.4%.
<h3>How to calculate production efficiency?</h3>
Energy from food is 5000 J
Energy lost in feces is 2300 J
Energy used in cellular respiration (metabolism) is 2500 J
The production efficiency of consumer in an ecosystem is given by
(Energy from food- Energy lost in feces-Energy used in cellular respiration (metabolism)) divided by (Energy from food- Energy lost in feces)
= (5000 - 2300 - 2500)/ (5000 - 2300)
= 7.4
<h3>What is
production efficiency?</h3>
Energy transfer efficiency from one trophic level to the next is referred to as ecological or production efficiency. It is determined by a variety of assimilation and resource acquisition efficiency for organisms within an ecosystem.
The average efficiency of energy transfer between trophic levels is such that net production at one trophic level is often only 10% of net production at the trophic level before it (the Ten percent law). In contrast to being absorbed for production by consumers, a sizeable quantity of energy is lost to the environment as a result of non-predatory mortality, egestion, and cellular respiration. Although these fractions differ significantly from ecosystem to ecosystem and from trophic level to trophic level, the picture roughly represents the fraction of energy available after each stage of energy loss in a typical ecosystem.
To learn more about production efficiency with the help of given link:
brainly.com/question/14292921
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