Enable members of a phylum to survive and reproduce
Answer:
Explanation:
Two different elements have similar chemical properties when they have the same number of valence electrons in their outermost energy level. Elements in the same column of the Periodic Table have similar chemical properties.
Answer:
The correct answer is "crop rotation".
Explanation:
Crop rotation is the agricultural practice that consist of growing a series of different crops in sequenced seasons using the same soil. This practice helps to replace the lost soil nutrients by changing the soil nutrients consumption among the different crops. The benefits of crop rotation include reducing soil erosion and increasing soil fertility and crop yield.
I think it's 420,000 kcal, because 10% of energy is lost as you move up each trophic level. To find what you started with you would multiply by 10 instead of dividing by 10. You have to multiply by 10 twice, because of the primary consumers and producers.
The surface area of a sphere is given by the expression, . The volume of the sphere is given by the expression, .
Dividing the surface area expression by the volume expression, we get, .
So the ratio is inversely dependent on the value of r.
Given for the sphere, the surface area = 588 m², and the volume = 1372 m³.
Dividing the surface are by volume, we get, as the answer.