Answer:
The HYPOTHESIS
Explanation:
In an experiment, the formulation of the hypothesis is a critical part of the scientific method. The hypothesis is testable explanation given after making an observation in an experiment. In other words, an hypothesis is a predictive statement given that is subject to testing via experimentation.
The essence of formulating an hypothesis is to relate the effect of a possible solution on an observed problem. The "hypothesis" section of a laboratory report is usually identified by the use of an IF and THEN phrases in the statement. IF represents the cause, while THEN represents the effect. For example, a hypothesis can read; If plants are placed under white light (cause), then they will grow faster in height (effect).
The levels, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
Un metal sólido no flota sobre su correspondiente fundido poque es mas denso que el mismo.
Que una sustancia flote en otra depende de sus densidades. La densidad es el cociente entre la masa y el volumen de un objeto. Los objetos menos denso flotan en los mas densos.
En general, los sólidos son mas densos que los líquidos, y estos que los gases. Esto se debe a las fuerzas de atracción que hacen que la misma masa ocupe menos volumen en el caso de los sólidos. Este es el caso de los metales sólidos que no flotan en su correspondiente fundido.
El hielo flotando sobre el agua es una excepción a esta regla general. El puente de hidrógeno en el agua hace que este tenga mas volumen que el liquido y por lo tanto sea menos denso.
Un metal sólido no flota sobre su correspondiente fundido poque es mas denso que el mismo.
Aprende mas: brainly.com/question/3944963
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Answer:
30 calories of energy
Explanation:
In an aquatic ecosystem, zooplanktons are primary consumer i.e. they feed on primary producers e.g phytoplanktons. They are fed on by smaller fishes e.g tilapia, which in turn is fed on by sharks. Based on this, we have a food chain as follows:
phytoplankton → zooplankton → tilapia fish → shark
From this food chain, it appears that ZOOPLANKTON is a primary consumer while SHARK is a tertiary consumer. Since only about 10% of energy is transferred to each trophic level when organisms feed on one another, if there are 3000 calories of energy available at the zooplankton, the following will be available for sharks:
For secondary consumer = 10/100 × 3000 = 300 calories for tilapia fish
For tertiary consumer = 10/100 × 300 = 30 calories for shark.