Fossil Fuels; Once they run out ,humans can not replacing them.
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.
I hope this can help you.
Answer:
C.
Explanation:
Starch are macromolecules that are made of monomers that are simple sugars. Cells are microscopic and they can only absorb small substances. Therefore starch needs to be digested in other words broken down into simpler substances that can be taken in by cells. Therefore before starch can enter a cell it must be 3) digested to form simple sugars
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The region which is directly medial to the hypochondriac regions of the body is the epigastric region. It is the upper central part of the abdomen, found in between the subcostal plane and the costal margins. This region is part of the nine regions found in the abdomen. The organs included in this region are the pancreas, liver and the stomach. Also, the adrenal gland, a part of the small intestine, the duodenum is also included. This region is not an organ or a muscle rather it is an area of activity wherein the diaphragm and the rectus abdominus would make an outward bulging of the abdominal wall especially the upper portion.
Answer:
lichens and bacteria also fungi are all example of pioneer species
Explanation: they are because of where they live how they grow and why they do what they do to help the environment.
