D. Fossil in layer 6 are less than 540 million years old
Answer:
The herbivory by the white-tailed deer
Explanation:
The independent variable can be defined as the variable that who's values do not depend on those of another.
The independent variable in this case is the herbivory by the white-tailed deer which is divided into two categories.
The dependent variables is the response of the corn to the independent variable which are measurements to be taken as shown in the question; the height of the corn plants and the number of ears or corn each plant produces.
Answer:
Bacteria that have obtained the ability to resist the effects of antibiotics. As the diseases caused by these bacteria are hard to treat.
Explanation:
Darwin proposed that evolution is caused by natural selection.
During the industrial revolution caused tons of soot has been deposited in the countryside around industrial areas. The soot discoloured and generally darkened the surfaces of trees and rocks.
In 1848, a dark-coloured moth was first recorded. Today, in some areas, 90% or more of the-peppered moths are dark in colour. More than 70 species of moth in England have undergone a change from light to dark. Similar observations have been made in other industrial nations, including the United States.
Overusing and misusing of antibiotics causes antibiotic resistance. The ability of bacteria to resist the effects of an antibiotic is known as antibiotic resistance.
It occurs because of overuse and misuse of antibiotics over a long period of time. It also occurs if we do not use it as prescribed.
Antibiotics should not be taken every time we feel uncomfortable. We should not save it for next time and should not share it with others. If we overdose ourselves with it we may have serious side effects which can make us feel worse.
Answer:
Temperature, humidity, food and water.
Explanation:
Temperature, humidity, food and water are the four stimuli that is responsible for the decrease in the population of producers, consumers, and decomposers living in that area. If the temperature is too high or too cold, the growth of the producer stops and the plants can't tolerate the temperature will die. The death of producers causes the death of consumers because consumers depend on these producers for food. The population of decomposer also decreases if the environment is too harsh because decomposers also requires suitable environment for growth and survival. There is adverse effect on the energy pyramid, population, and community of organisms within the environment if these stimuli are not present in suitable range.
Answer:
Both carbohydrates and lipids serve as sources of energy, but these compounds contain different capacities for energy storage. Each gram of carbohydrates stores 4 calories of energy, whereas each gram of lipid stores 9 calories. As a result, lipids serve as a more compact way to store energy, since it contains more energy per gram than carbohydrates.
Explanation: