Answer:
t(n) = 3·5^(n-1)
Explanation:
The recursive formula describes a sequence in which each term is 5 times the one before it. This is a geometric sequence with common ratio 5 and a first term that is said to be 3.
As you know, the generic formula for a geometric sequence is ...
an = a1·r^(n-1)
For a1 = 3, r = 5, and a sequence named "t", this is ...
t(n) = 3·5^(n-1)
Vaccines train our immune systems to create proteins that fight disease, known as antibodies’
D. metamorphic -> melting -> igneous -> erosion
Explanation:
The sequence that would be the best possible for a rock going through the rock cycle is metamorphic rocks melting to produce igneous rocks that are eroded.
- The rock cycle shows the pathway by which different rock types are formed.
- The origin of the formation of rocks starts with the production of magma.
- Igneous rocks are formed from cooling and solidification of molten magma.
- Metamorphic rocks are formed from the subjection of igneous and sedimentary rocks to high temperature and pressure.
- Sedimentary rocks are formed from weathering, erosion, transportation and deposition of rocks.
- Option D shows a metamorphic rock melting to give igneous rocks and the igneous rock is eventually eroded to form sedimentary rocks.
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Answer:
A. To ensure that your observations are complete and representative of the entire area
Explanation:
This is the most obvious choice, considering that every experiment you conduct requires using your five senses.
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The different levels of organisation within the biosphere, from the smallest to largest are:
1. Individual, species or creatures
the organisms
2. population
The entire populace
3. community
The total population at a given point in time and place.
4. ecosystem
The biotic and abiotic factors that are interacting.
5. biome
The ecosystems that share the same characeristics and abiotic factors.
6. biosphere
The entire living and nonliving organism in the planet earth, from prokaryotic cells to eukaryotic cells and how organic compounds from its enviroment aid in their survival
