all the organisms that interact in a lake
B.
all the gray squirrels that live in a forest
C.
an area characterized by a group of plants and animals
D.
a nonliving factor in an organism’s environment
Answer:
B.all the gray squirrels that live in a forest
Explanation:
took the test
The killing of all the algae in a part of the open ocean leads to scarcity of food in the ecosystem. Due to this, the food web becomes unstable and a lack of biodiversity is seen in it.
A food web may be defined as the interconnection of a number of food chains with each other in order to form a web-like pattern. One organism can hold more than one position. The flow of energy is very difficult to calculate. It is a series of branching chains instead of a straight line.
Algae is a type of producer in the aquatic ecosystem which holds energy for the rest of the organisms in the same habitat. From algae, herbivores consume direct energy which is transferred to carnivores. But when algae are died off, due to lack of food herbivores are eliminated. And as a result of this, carnivores are found to be absent.
Therefore, the killing of all the algae in a part of the open ocean leads to scarcity of food in the ecosystem. Due to this, the food web becomes unstable and a lack of biodiversity is seen in it.
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Answer:
1.Observation and description of a phenomenon. The observations are made visually or with the aid of scientific equipment.
2.Formulation of a hypothesis to explain the phenomenon in the form of a causal mechanism or a mathematical relation.
3.Test the hypothesis by analyzing the results of observations or by predicting and observing the existence of new phenomena that follow from the hypothesis. If experiments do not confirm the hypothesis, the hypothesis must be rejected or modified (Go back to Step 2).
4.Establish a theory based on repeated verification of the results.
Explanation:
The scientific method is a structured approach used in scientific research. It begins with an observation, then a hypothesis is formed, and experiments are conducted to test this hypothesis. Lab results reveal whether the hypothesis was correct, needs revision, or is incorrect.
The scientific method is a systemic approach used in science to find answers to questions or solve problems. It consists of a sequence of steps, each of which plays an integral part in the research process.
The first step is to make observations about the world around us. With observations, we form a hypothesis, which is a tentative explanation for the observed phenomenon. This hypothesis becomes the basis for the experiment, where we test to see if it holds true.
The lab results are findings obtained from an experiment. They provide detailed information on whether the hypothesis stands or not. They may either support the hypothesis, totally debunk it, or partially prove it. Analyzing and interpreting these results is key in scientific research. For instance, if your hypothesis is 'All plants turn towards the sunlight,' you would study several plant species over a period of time to either support or refute this hypothesis based on the results. If some plant species consistently do not turn towards the sun, your lab results would falsify the hypothesis, leading to its revision.
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