Because predator species often will switch its prey as one prey species becomes less abundant.
Why this is so should be obvious - because it's not in the interest of predators for the prey species to completely die out as it would effectively also mean that they would die out due to not having enough food to eat.
There are four groups of macromolecules. Carbohydrate, Protein, Nucleic acid, and Lipids. Each macromolecule is essential for the growth and formation of cells. Carbohydrates are used for energy and help build the structure of the cell wall. Proteins help build and regulate muscle and tissue. Nucleic acid transfers
and stores information. Lastly Lipids insulate your body and help produce hormones.
The following is true of weather: PATTERN MAY CHANGE FROM HOUR TO HOUR OR FROM DAY TO DAY.
Weather refers to the atmospheric condition in a particular place over a short period of time. Weather is measured by considering different variables such as temperature, relative humidity, precipitation, etc. Climate on the other hand refers to the weather condition of a place that is measured over a long period of time, normally over a period of 30 or 35 years.
Answer:
11) A. The optimum pH of an enzyme is 6.6
12) C. A control group
