When a fish swims from salt water into fresh water its cells react by losing water and shrinking. The correct option is D.
<h3>What is fresh water?</h3>
Glaciers, lakes, reservoirs, ponds, rivers, streams, wetlands, and even groundwater contain fresh water.
These freshwater habitats cover less than 1% of the world's total surface area but are home to 10% of all known animals and up to 40% of all known fish species.
When a fish swims from salt water into fresh water its cells react by losing water and shrinking due to osmosis.
Thus, the correct option is D.
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1. Explain why the distribution of fossils in Figure 1 supports the hypothesis that the extinction of these species was the result of a sudden environmental change.
This hypothesis can be supported because all the fossils accumulate almost at the same age of the rock layer. That is, all the fossils died almost at the same time.
2. Describe an environmental change that could have produced this type of fossil distribution.
Good examples of sudden environmental changes are volcanoes. When a rash occurs, the whole environment suddenly changes for different reasons such as ash or lava, and all living things can die immediately or in a few years by the change in the ecosystem.
3. Explain why the distribution of fossils in Figure 2 supports the hypothesis that the extinction of these species was the result of a gradual environmental change.
This is because the fossils accumulate at different ages of the rock layer, that means, the species dying over time. The gradual descent of the fossils is observed.
4. Describe an environmental change that could produce this type of fossil distribution.
For example, if a climate change occurs - the temperature increases or decreases - it can cause the trees or plants to die and all the animals in the ecosystem also die when they have no food. But this process is sequential, so the change can take years, centuries or even millions of years.
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Answer:
The Amazon is a critical absorber of carbon of carbon dioxide, a greenhouse gas produced by burning fossil fuels, like oil and coal. ... The Amazon absorbs 2 billion tons of CO2 per year (or 5% of annual emissions), making it a vital part of preventing climate change.
Explanation:
Invasive species" is defined as aspecies that is: 1) non-native (or alien) to the ecosystem under consideration and. 2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health.
Answer:
Explanation:
A cell as the functional and structural unit of life exhibits numerous concepts of life which include:
1. Growth; A cell is a subject to this as the growth of a cell translates to the growth of the tissue is composed of, the cell is responsible for all biochemical actions in living organisms, this growth is achieved via mitosis.
2. Reproduction: Cells also experience reproduction via meiosis, where a diploid cell divides to produce 2haploid cells an example of this is the spermatozoa.
3. Death: Cells are also subject to death, which can either be programmed (Apoptosis), or due to sickness(Necrosis). This is also found when humans die and become stiff due to rigor mortis which occurs as a result of cell death
