The density of a population of living organisms is usually measured in individuals on one square km. In here we have 50 earthworms on an area of 5 square meters, thus we have 10 earthworms on every square meter. In order to get to the result we need to see first how many square meters there are in one square km. One square km has one thousand meters of length and one thousand meters of width so:
1,000 x 1,000 = 1,000,000 km²
Since we established that we have 10 earthworms on every one square meter, we just need to multiply the number of square meters with the amount of earthworms on every square meter:
1,000,000 x 10 = 10,000,000
So we have a density of 10 million earthworms per square km.
Answer:
Hello the correct answers are......
Classify the sets of bones below as being part of the axial skeleton or the appendicular skeleton.
✔ appendicular skeleton = hands and feet
✔ axial skeleton = sternum
✔ axial skeleton = skull
✔ appendicular skeleton = hips
✔ axial skeleton = ribs
✔ appendicular skeleton = shoulders
✔ appendicular skeleton = arms and legs
<u>✔ axial skeleton</u> = vertebral column
Explanation:
just took the test from edge
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Answer:
The sum of an organism's observable characteristics is their phenotype. A key difference between phenotype and genotype is that, whilst genotype is inherited from an organism's parents, the phenotype is not. Whilst a phenotype is influenced the genotype, genotype does not equal phenotype
Baroreceptors. These are found in the carotids and aortic arch. They respond to pressure exerted on the vessels.
Answer:
Greenhouse gases absorb this energy, thereby allowing less heat to escape back to space, and 'trapping' it in the lower atmosphere. Many greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, while others are synthetic.
