Bioindicators are also known as macroinvertebrates that can give scientists clues about the health of a river or stream that other indicators cannot show. They help determine the health of the river or stream.
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∙ 14y agoBioindicators are organisms or species that are sensitive to changes in the environment, making them useful for monitoring and assessing the health of ecosystems. They can provide early warning signs of environmental degradation or pollution, helping to identify and address issues before they become more severe. Bioindicators are valuable tools for environmental management and conservation efforts.
Five significant digits. Remember that all non-zero digits are significant, and all zeros in-between significant digits are significant.
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Four - zeros between significant digits are significant.
0.007 has one significant figure. The 7 is significant because all non-zero numbers are always significant. The leading zeroes are not significant.
Only one of them is significant. The leading zero (zero to the left) is not significant. The trailing zero (rightmost) is significant. To recap, only the zero following the seven is significant. See the related links for a really good article on significant digits.
BIOINDICATORS
Daphnia(water fleas) are used as bioindicators in water. If you put daphnia in a river and they die, it means that there is some sort of unnatural chemical in the water that is not supposed to be there.
Bioindicators
Bioindicator organisms are used to monitor the health of the environment because they can provide valuable information on the presence of pollutants or changes in ecosystem conditions. These organisms are typically sensitive to environmental changes and can serve as early warning signs of potential issues.
The indicator is litmus paper. :)
An example of Euglenophyta is Euglena, a type of single-celled organism commonly found in freshwater environments. Euglena has a unique feature called the eyespot, which helps it detect light for photosynthesis.
significant
Well-adapted for survival: Crocodiles have remained relatively unchanged for millions of years. Efficient predators: They have powerful jaws and excellent hunting skills. Ecosystem maintenance: They help to control fish and other animal populations in their habitats. Disease control: By consuming sick or weak animals, they can prevent the spread of diseases. Environmental indicators: Their presence or absence can indicate the health of an ecosystem. Nutrient cycling: Their feeding habits contribute to the recycling of nutrients in aquatic environments. Cultural significance: Many societies have myths, legends, and traditions involving crocodiles. Tourism attraction: Crocodile watching can be a significant draw for ecotourism. Scientific research: Studying crocodiles can provide insights into evolution, behavior, and physiology. Economic value: Crocodile farming can be a source of income through the sale of meat, skins, and other products.
Three. All nonzero digits are significant and zeros in between significant digits are always significant.
4 significant figures.
There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.
There are four significant figures in 700.0. The zeros after the decimal point are significant since they indicate precision.