Answer:
Longest interval during which no tree-cutting sample occurred: 9 years (1203 AD - 1212 AD)
First year in that interval: 1203 AD
Explanation:
Lets complete the question first.
Q) A study uses tree rings to determine the year in which a tree was cut. The data is shown in the leaf and stem diagram in the ATTACHMENT.
The three digits number in the left column represents centuries and decades AD. The numbers on the right represents the years.
For example, consider the first input in the diagram
119 | 5 6
which means it represents 2 samples.
1195 AD, 1196 AD.
The longest interval with no tree-cutting samples is found from 1203 AD to 1212 AD.
In ecology, allogenic succession is mediated by the abiotic components of the ecosystem, while the autogenic succession refers to the succession, which is mediated by the biotic components of an ecosystem.
A volcanic eruption wiping out an entire island is an example of allogenic succession.
A soybean crop helping in nitrogen fixation, leading to the development of other species is an illustration of autogenic succession.
A tsunami devastating all the living organism in a habitat is an example of allogenic succession.
Oak trees preventing the growth of smaller sun-seeking shrubs is an example of autogenic succession.
Answer:
(Indian Leaf Butterfly) CAMOUFLAGED
(Monarch Butterfly) CHEMICAL DEFENSE and COLOURFUL WARNING SIGNALS
Explanation:
The Indian leaf butterflies survives by camouflaging to deceive a potential enemy. They could also seek survival by blending to their presents environment such that a supposed enemy finds it hard to identify with their presence.
The monarch Butterfly are very colourful and are super in defending themselves through chemical means.
By chemical defense, they do well to feed on milkweed which is highly poisonous but they have their way of isolating themselves from the consumed poison.
They also send away predators using their colourful warning signals and bright colours. This colours informs predators that they contain poisonous contents.
When a predator bites a monarch Butterfly, it taste the poisons in the wings of the butterfly and let it go. But if peradventure a birds swallows a monarch, the experience of the taste of the poisons teaches the bird never to hunt a monarch Butterfly again
I found the exercise on the internet and the tools are organised below into their corresponding step of the DMAIC cycle.
Define (a<span>rticulate the problem, objectives, resources, project, etc):</span>
-Quality Circles
-Flow charts
Measure (collection of data, establish base lines for improvement):
-Pareto Charts
-Check Sheets
Analyse (identify, validate):
-Cause-and-effect diagrams
Improve (test and implement solutions):
-Brainstorming
Control (monitoring improvements and ensure continuing success):
-Control Charts for new Process
The primary force which causes the seafloor to spread and continents to drift is tectonic movement of our tectonic plates. This happens all the time but we don't observe it and don't necessarily see it. It becomes very observable when there is a huge earthquake for example.
