Answer:the hierarchy technique.
Explanation
It is a top- down analysis used to identify the sequencial order of prerequisite arrangements.
Answer:
1. Scientific method
2. pseudopods
3. In 1909, Ernest Rutherford’s
4. innovation
5. nerve cell
Answer:
63.55 amu
Explanation:
The average atomic mass of an element can be calculated by multiplying the decimal abundance of each isotope of that element by the relative atomic mass and summing them up. That is;
Average atomic mass = {atomic mass of isotope 1 × decimal abundance of Isotope 1} + {atomic mass of isotope 2 × decimal abundance of isotope 2}
According to this question, two most abundant isotopes of copper contain 34 and 36 neutrons. The atomic mass of each isotope can be found by adding the no. of neutrons to the atomic number/proton no., which is 29.
Atomic mass of Isotope 1= 34 + 29 = 63
Atomic mass of Isotope 2= 36 + 29 =65
Decimal abundance of each isotope = percentage abundance ÷ 100
Isotope 1 (with 34 neutrons) = 72.5% = 72.5/100 = 0.725
Isotope 2 (with 36 neutrons) = 100 - 72.5 = 27.5% = 27.5/100 = 0.275
Therefore, the average atomic mass
= {63 × 0.725} + {65 × 0.275}
= {45.675} + {17.875}
= 63.55
Hence, the average atomic mass of copper is 63.55 amu
The list of items are as follows:
day length,
tundra plants, including blueberries and birch
caribou and grizzly bear
soil depth
lichens
air temperature
Answer:
The correct answer is - tundra plants, including blueberries and birch, caribou and grizzly bear, and lichens.
Explanation:
The arctic tundra is known for its extremely cold winter temperatures, high latitude/northern hemisphere, little precipitation. Vegetation in here is permafrost, birch, blueberries, lichens, and mosses, migrating mammals such as grizzly bears and caribou, and residing herbivores.
Various biotic and abiotic factors interact in this ecological community one another and on the basis of the given information the items which are part of the arctic tundra ecological community are-
tundra plants, including blueberries and birch, caribou and grizzly bear, and lichens.
