What are mutations and how do they affect an organism?
1 answer:
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<h3><u>Answer;</u></h3>
B.introduced species
<h3><u>Explanation;</u></h3>- <em><u>Animals become extinct for a number of reasons. Currently many animals are endangered or have become extinct due to human activities or human influence.</u></em>
- Extinctions may be caused by reasons;<em><u> such as pollution; loss of habitat due to human activities such as agriculture, introduced species, hunting and poaching for meat and other animal products such as feathers, horns and skins, and also over-harvesting among other influences.</u></em>
- In this question; <em><u>Introduced species occupies the largest percentage, that is 39%, from the pie chart (Attached).</u></em>
- Hunting and poaching; 23 %, Habitat loss; 26%, and Others; 2%.
Answer:
a. Approximately 1,003 weasels, 3,345 mice and 16,729 wheat plants per one hawk are in the ecosystem
Explanation:
The percentage of the weasel population eaten by a hawk = 30%
The percentage of the mouse population eaten by a weasel = 30%
The percentage of the wheat plants population eaten by a mice = 20%
a. One hawk needs 330 kJ of energy per day, which gives 330 kJ × 365 = 120,450 kJ per year
Let 'x' represent the number of weasels to support one hawk, we have;
0.3 × x = 120,450 kJ/year/(400 kJ) = 301.125
x = 301.125/0.3 = 1,003.75
The number of weasels required to support one hawk per year ≈ 1,003 weasels
The total weasels ≈ 1,003
ii) The number of mice needed, y = x/0.3 = 1,003.75/0.3 = 3,345.8
The total mice, y ≈ 3,345 mice
iii) The number of wheat flower needed, z = y/0.2
∴ The number of wheat flower needed, z = 3,345.8/0.2 ≈ 16,729.1
The total wheat plants ≈ 16,729.