Answer:
here are four basic cost behavior patterns: fixed, variable, mixed (semivariable), and step which graphically would appear as below. The relevant range is the range of production or sales volume over which the assumptions about cost behavior are valid. Often, we describe them as time-related costs.
Explanation:
The general types of cost behavior fall into three categories. First is variable costs, which vary directly with changes in business activity. For example, there is a specific direct materials cost associated with each product sold. Second is fixed costs, which do not change in response to business activity levels.
Answer:
keystone species
Explanation:
Keystone species are indispensable species that are essential to the maintaining of the balance of an ecosystem, and also play a major role in the way species in the ecosystem interrelate. The absence or removal of a keystone species from a habitat or ecosystem would lead to the disruption and imbalance of the ecosystem, and as such lead to the extinction of other species.
An example of a keystone species is the bee. Bees are very important in pollination of flowering plants and also ensure their survival. This plants serve as home to various insects that are source of food to birds. The removal of bees from this ecosystem would affect the ecological balance of this ecosystem.
Answer:producing human insulin in bacteria
engineering an insect-resistant strain of wheat using a bacterial gene for a toxin
engineering a bridge to be corrosion-resistant using a material made from graphite, a
Explanation:
The oxygen released came from water
